Can grinding be fun?

Just recently I been playing Persona for the PSP since 2 months ago and haven't finish it yet. You could say that the reason why I haven't finished it is that I only played it in small section due to its portability since it is on the PSP. That is true but the real reason why I haven't finished it is that I been doing nothing but leveling up my characters and Personas. I have done that in many RPGs like Persona 4, the tales games and even Fallout 3. Many players are turnoff by this type of game playing style but I tend to enjoy it and don't have a confirm reason why I like it. Maybe its the enjoyment of getting to the next level or trying to get a new ability or that the combat is really fun to do that all I want to do is grind.
 
What do you think?

Just recently I been playing Persona for the PSP since 2 months ago and haven't finish it yet. You could say that the reason why I haven't finished it is that I only played it in small section due to its portability since it is on the PSP. That is true but the real reason why I haven't finished it is that I been doing nothing but leveling up my characters and Personas. I have done that in many RPGs like Persona 4, the tales games and even Fallout 3. Many players are turnoff by this type of game playing style but I tend to enjoy it and don't have a confirm reason why I like it. Maybe its the enjoyment of getting to the next level or trying to get a new ability or that the combat is really fun to do that all I want to do is grind.
 
What do you think?

I fished in runescape a few years back for like a month, but i haven't played it since.  So i think grinding is ok, but it can ruin a game.

grinding is ok. i use to play wow for like 2, 3 years. grinding can be fun if u know what to do. sometimes i would grind some monsters alt tab and watch something on computer for a couple of minutes and grind again. other times i had friend to chat with.

For someone who stopped playing plenty of JRPGs because of all the senseless grinding, allow me to say that it isn't fun.

I ground the shit out of Demon's Souls.  
 
Pro tip: listen to the bombcast and everything is so much more fun.

I thought you meant "grinding" as the skateboarding term. 
 
Um...I grind only if it's necessary. And it's usually not fun in any case. 

When I first read the thread title, I thought it could've meant one of three things.
 
Grind-dancing with a hot girl in the clubs, Grinding on a Skate board OR Grinding for experience in a game, generally of the JRPG genre.
 
Then I saw it was in general discussion and automatically thought: "HELL! NO!" Not unless you really, really want something in a game.

When I get into a rhythm, I like grinding just fine.  I spent countless hours in games like Final Fantasy VI, Chrono Trigger, Persona 3 & 4 and other games doing just that.

I kinda love grinding. Pokemon I was 80 hours into Diamond when I got to the Elite 4. My Final Fantasy 2 file is 5 hours in and I've done nothing for the story. Final Fantasy 1 I didn't GRIND but I was somehow so overpowered I never even had a problem with Chaos. 
 
But then when it's something like WoW, it's less fun. I may be odd.

I never mind grinding in RPG's seeing as i go out of my way running back and forth like an idiot sometimes ,  i like going into a fight feeling overpowered.

It is in some games if it is done well and you don't have to do it so much that it becomes a major chore.

I never find grinding that fun to be honest. 

It depends. I was able to enjoy it on P3 and P4, but the first Persona really tired me out, but it is more of an old-school rpg.  Borderlands I will grind for hours to get proficiencies up.  @Akeldama said:

" Pro tip: listen to the bombcast and everything is so much more fun. "

ive always enjoyed grinding in rpgs as long as its a good one, im also a bit of a leveling up junkie

I enjoy the occasional RPG grind from time to time

" For someone who stopped playing plenty of JRPGs because of all the senseless grinding, allow me to say that it isn't fun. "

If the girl is hot. And good at dancing. 
 
It's fun in MMOs insofar as it's an opportunity to chill out with your friends.

" I thought you meant "grinding" as the skateboarding term.  Um...I grind only if it's necessary. And it's usually not fun in any case.  "

" If the girl is hot. And good at dancing.  "

I found that Final Fantasy 12 was a fantastic game to just grind in because it was fun to tweak the gambit system until it worked as smoothly as possible.

It was back in the days where Star Wars Galaxies was, you know, good.  
Cooking, fishing, flying around to different planets and systems to sell your goods. 
Set up a shop in a market place and just wait around for someone to come by and order some of your food. 
 
OH wait, grinding levels? 
Meh, never had the need to, I just finish Missions/Quests and so on.

Grinding can be repetitive.

" If the girl is hot. And good at dancing. "

Really depends on the game..  In typical RPG's, I really think it should be avoided.  JRPG's are particularly guilty of forcing you to level up for hours just to beat a single boss.  That's not good game design..  I'm also not keen on MMO's that use it as a crutch to force you to keep playing/paying the subscription.  Yes, I'm looking at you World of Warcraft.
 
About the only time I really enjoy it is in loot grinding games, like Diablo, Phantasy Star Online or more recenetly Borderlands.  It's not really grinding in the same sense, but the gameplay tends to be rather simplistic and the main goal is to just keep killing enemies to find better loot.  By yourself, I don't see why you'd ever bother, but with a friend or two it becomes very enjoyable.