Why spend hundreds of dollars on a console that really only has one function? Plus, most of the games - YAWN.
The main function for my PS3 was playing Blu-rays until I built my HTPC.
And for that, it was quite cheap actually.
Nowadays, a console is not only for gaming... but also for internet, communication, media center etc. So, your point is not quite valid there.
Of course the PC has it's advantages too... nobody would come up with the idea to use Office on a console for example... or to "seriously" use the internet surfing means.
I think the best way is to have a PC AND consoles.
On topic: I would play the PC version because I prefer that for 3D RPGs... the keyboard+mouse controls plus the easier interface with faster saving/loading are the main reasons.
