Well, you can wait for the price to drop but then have the PS3 trade in drop too. Its already almost got cut in half the past 2 months. Sell your PS3 on Craigslist for $150 and upgrade already!
My dusty, old, loud-whirring, phat PS3 that I paid $125 for 3 years ago? If you know someone who'd pay $150 for it, tell them to hit me up ASAP
I wouldn't mind trading it in, not that I think I'd get much for it due to the description above, but there's only the 1 PS4 game I want to play, while I'd be giving up my collection of PS3 games. I haven't even thought about it or looked it up, but I'm sure the PS4 isn't backwards compatible, so I'd still need a couple more games to come out that I'd be interested in before I buy it just for Madden.
But then again, maybe M15 on PS4 will have a much improved CFM that will make me want to go out and buy it so I can jump into a league on day 1. I've literally heard nothing about any changes to the game modes on it though