I have both.

I own a PS4. I like everything about it, but the shape. They should have just used right angles. The controller is almost as comfortable as the 360 controller, and certainly is the best by Sony, yet.

I have a PS3 that I play a lot of.

I also have a 360 I used to play a lot of.

I have both and will stay this way for a while.

I have a PS4, had a PS3 before.

Have both.

I have a PS3. Might get a PS4 next year.

I've had a PS3 since the beginning of 2009. While I haven't played a game on it in a while, I use it almost every day for either blu-rays, DVDs, or videos/TV shows that I have stored on it (great place to watch my HD Epic Rap Battles when friends come over).

No plans to buy a PS4 any time in the foreseeable future.

Both PS3 and PS4.

I shamefully rarely ever use my PS3 any more. Luckily, in school I took my PS3 instead of my PS4 and had good fun with GTAV but seriously, it is a PAIN to transport.
I've carried around the PS4 and the PS3, and Jesus the PS3 is hell to move around.
The Fatty of course.

I once had a PS3, don't own either now.