I play the PSP as I enjoy the format the most. I have played and won at both styles. I really enjoy the fun that the Race2 format offer.
If I were to play for money I would stop as there is no way in psp or nppl to make money. You play for the love of the game and to see just how good you and your team are.
Also if you don't go to PSP events you can't watch Vicious play