It's $65 up here in Canada for the Fallout 3 GOTY Edition, and I've somehow managed to entirely avoid playing Fallout 3 completely. I never really got into the whole Fallout franchise, but I've been pestered by many to play it so I'm thinking of finally caving into a purchase. 
 
So is the GOTY Edition still worth a good purchase? Or should I just pass over the GOTY and opt for a used copy of standalone Fallout 3 for cheap?

I would get the GOTY Edition. You'll get all of the DLC, but most importantly you get Broken Steel, which increases your level cap and extends the main quest line. Basically (at least here in the US) the GOTY Edition costs the same as just buying all of the DLC.

I would say it is a good purchase, however you would have to be tolerant of some bugs that exist within the game in places.  If you already knew this (as Bethesda games generally are buggy), you will find a pretty solid game.  Also the DLC really helps to make your exploration in the Wasteland more interesting and (possibly) easier.
 
I'm assuming you are getting the 360 version, though if you are thinking of getting the PC version and are into modding, there are some great mods for this game too, increasing the game's already large longevity.

Yes, it is definitely worth it, especially with all of the DLC.

Yea if you havent played Fallout 3  yet
Get that shit son  
cant wait for new vegas

Go for it! I've played that game to death for countless hours and I love it. The next game, New Vegas, is constantly on my mind. 
 
GO GET IT!

Yes, get it.

" Yes, it is definitely worth it, especially with all of the DLC. "

" @ShiftyMagician: What sort of glitches and bugs are we talking about? (hopefully spoiler free) "

Definitely.

I never really got into the whole Fallout franchise, but I've been pestered by many to play it so I'm thinking of finally caving into a purchase.  

You should definitely consider getting the GOTY version. I bought the original for 18 bucks thinking I would only purchase 1 or 2 of hte expansions, now I find myself wanting to play all of them,

You betcha it's worth it.  I picked up a GOTY edition for the PC earlier this year and it's awesome still.  I had the regular 360 version before that.

Get it if you were not one of those people that bought Fallout 3 on the first day.

When I had to make a similar decision recently, I decided to purchase only the less expensive standalone version of Fallout 3. 
 
I'm playing the game on the PS3, and everything that I have read suggests that the freezing is only really bad on the expansions (even to the extent that some of them are basically unplayable). I have heard, however, that the issues are not as bad on other systems and that the degree of freezing varies widely from person to person. Ultimately, your decision should probably depend on how much patience you think you will have if the GOTY ends up freezing repeatedly.

"  It's $65 up here in Canada for the Fallout 3 GOTY Edition, and I've somehow managed to entirely avoid playing Fallout 3 completely. I never really got into the whole Fallout franchise, but I've been pestered by many to play it so I'm thinking of finally caving into a purchase.  So is the GOTY Edition still worth a good purchase? Or should I just pass over the GOTY and opt for a used copy of standalone Fallout 3 for cheap? "

Get the GOTY version and play it while you wait for the New Vegas GOTY (I am NOT going to spend 110 dollars on another Fallout game.....is what I keep telling myself)

" Yea if you havent played Fallout 3  yetGet that shit son  cant wait for new vegas "

" @floodiastus: I got one question Mayne tell me who next "

" Well after that positive response, I headed out to buy the GOTY edition. Goodbye 100+ hours of life, hello 100+ hopeful hours of enjoyment. "

Yes, yes, and yes! I've just started playing and I already feel I've got my money's worth!