No
Yes
Yes, mostly.
With RFOM, Motorstorm, Assassins Creed, Heavenly Sword, COD4 and a selection of others out now and GT5, GTA, Home, and RFOM2 due out in the future the PS3 is a top system to buy. Unless you are the sort of person who has to buy 5 or 6 top scoring titles a month, the PS3 offers you what you need. Saying that, The other consoles would suffer the same problem. The only downside I can think of would be the shoddy ports but you can steer clear of those.
Also, even if you can only have PC or PS3 running at any one time you can still surf your favourite gaming forum
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