Also, little known fact. Due to getting a game engine that'll work on all out of the box consoles. Both xbox6000 and PS20 are vsync framelocked at 30fps.
In a day and age when you can build your own descent gaming pc (its really not that hard actually, pretty much so long as you can be careful about static its about as difficult as lego on hard mode) for 400 pounds/500 dollars and you can pretty much buy any game for drastically cheaper and at the time it would take to drive to most stores from steam.
People keep saying Pc gaming is dying, tend to be people in the industry of making consoles or reviewing their games.
Of course you can spend thousands and thousands and thousand on one if you want. But you know, its kinda retarded. If you haven't got something descent for absolutely 600$/500£ absolute ceiling you've done it wrong. Screen not included however, but thats really an afterthought these days as its not hard to get a good one second hand.
The big pitfall though, is your careful about what your getting first time round. more than 4 cores is a complete waste of time (and no matter what anyone tells you, unless you building a machine to do protien folding, you do not need an i7, ya don't), and anything under a 500w power supply will not be at all future proof (i.e you won't be able to put anything new in). Also you gotta be careful that your GRAPHX is not a bait and switch. To wit Anything Nvidia under x40 don't touch, anything Ati under x550 likewise. On-board integrated is never going to do.
So Pc
1) moddable content, ofc not ever game has this, but the best games can end up being 5-30 games. Take arma2 and dayz.
2) Now distribution systems like steam, that are pretty damn good. Half the reason video game stores are dying.
3) Multiplayer on-line kicks the shit into anything consoles can come up with.
4) Pick your bits carefully and its lifespan will be several times that of a console as you can upgrade piecemeal as you need to.
And.. so..
A) Watch you tube videos on (because seriously, it can be fiddely, but its not complicated)
x) how to actually BUILD the Pc
y) how to install windows from scratch
B) you do need to be super-super careful of static, impart a static charge to anything that'll have current running through it, and when you turn it on, bad times.
And your away.