Given it's extensive library and product offering buying a PS3 is never a bad choice. Do not wait for a PS4 as the first year there will not be many games for it anyways. There are hundreds of good games for the PS3 so I reccomend starting as early as you can haha.
If you get it let me know and we can play online. Cheers.
PSN: Saugeen-Uwo Feel free to add me (put Vg Chartz as MSG)!
Nintendo Network ID: Saugeen-Uwo