Hi Federico,
How much beginner are you?! The thing is, that those boards are made for high end freestyle, which means, that they turn very well in sliding moves.
So, if you want to learn Spock, Flaka,... it will help you greatly to use a modern very short freestyle board! Those boards are made for flakas and stuff like that...
If you plan to stay with jibes, tacks, 360s and so on, it might be good also taking an older board which is a bit longer.. these boards can still do spocks and stuff, but they do not help your rotations and slides as much as the newest shapes.
At the end you will be able to do all the moves on both generations of boards, it'll be just a matter of getting used to...
JP 2012 sounds great!
But let me know what's your level exactly... what are you planing to learn the next years/with that board....?
all the best
Rossi