And what kind of gaming is he going to do on his Ipad 3 compared to his  PS3 ?

Get FF XIII-2! Or... you know... save up for something... *wink wink*

So if you already played the first two parts on the PS2 you really should get the third part, you can get the platinum version for less than 20 bucks, and there is a second collection which include the 2 PSP GoW parts its about 25 bucks

And if you like that kind of games, you should consider Castlevania: Lords of Shadow for less than 20 bucks

Of course it's enjoyable offline! Both games are some of the very best ever made in my opinion, offline or online (easily in my top 10 of all time). It just gives a little extra spice when you are new to the game and play online see the comments and hints people have left on the ground and and you feel that you aren't entirely alone in that hostile world.

I see... you're taking in all the suggestions... make sure to think long and hard about mine.