Currently there are still games popping out for ps3 (aww yiss Naruto Ninja Storm Revolution bullshit fuck yeah mecha naruto h8 on me all u want fags) and honestly not that many games for the ps4, especially with the ridiculous price.
I recently bought a ps4, mainly for Orochi Warriors 3 Ultimate and some soon-to-be-released games (plus Destiny), and aside from those 3 games I've got, I still use the PS3 (though PC mustard race mainly still) most of the time.
The worst comparison between the two, if you were curious, is the change to the retro-gaming in the Playstation Store. Now they did make the PStore work way better, more smoothly, quickly, etc. But let's get to the annoying fucking stupid gay shit:
PS-Now.
So on PS3, in the store, you can normally shell out about 3-11 bucks to buy an old ps2 or ps1 game as a download for your ps3. That's pretty pleasant. You can re-do FF7, you can play Hogs of War (fuck yes), or whatever else.
On PS4 instead they have this shit called PSNow, which allows you to play ps3, ps2, and ps1 games at a RENTAL RATE OF DOWN TO BY THE HOUR.
Yeah that's fucking bullshit.
And gay.
That's my biggest complaint so far at least.