The price is basically for recharting the song with their version of tablature.

Time is money.

I can understand why they cost more, but at the same time, these are dudes that just spent $150 on a guitar. I think they should get like 10 pro version songs of their choice for free or something. That would be cool. Heck, even just 5 would be nice.

You certainly won't find me defending the new upcharge for upgrades.  I'm really not keen on it.  At the moment I'm not even sure about buying a pro guitar because of the pricing system on the songs.

So apperenly I was reading that every pro guitar and bass part comes with a tutorial for everysong but I still think it should just come part of the 160msp point pack rather that paying 240msp for a song.

I'm not thrilled about it, and I don't intend to buy a pro guitar until I see one in action and get to tool around with it. Even then, I'm unsure about the investment; we don't know how long Harmonix will actually be supporting the game's DLC now that they're no longer going to stay with Viacom. For example, if Konami or Activision end up buying them, they could close DLC much earlier than Harmonix may currently intend.

" So apperenly I was reading that every pro guitar and bass part comes with a tutorial for everysong but I still think it should just come part of the 160msp point pack rather that paying 240msp for a song. "

I don't mind paying an extra dollar, since it really does add a lot more to the experience... and I'd imagine it would be really tough to streamline it and still get the same level of quality in the charts.
 
I just wish they had another 80msp upgrade for keys & harmonies, re-buying every song is the one thing that really pisses me off about the new DLC model.
 
I'll still end up getting new tracks, and possibly even some pro upgrades... but I'm not buying any tracks labeled "RB3 version" unless I don't already have it.