I have been gnawing over the idea of going to PC... but I have a Mac and all the things I've heard uttered around the PC players areas with mods and stuff that's out of my league right now seem to say they are twice the hassle.
I grew up with a console. That's the main reason. Got my original Nintendo when I was 8 and it was all mine - Atari, Intelevision, all that was my dad's. That was the only one I got "for free" - my parents weren't blue-ribbon winners let's say - and after that... well when you're saving up Christmas and Birthday money to boost that Babysitting money fund up enough to buy the next new thing a big computer that you KNOW everyone in your house wants and will totally monopolize time away from your games on (this was when homes had either 0 or 1 computers in my income bracket). Choice seemed clear: go Super Nintendo! go Playstation! go Playstation 2!
... and then I was a grown up.
I still didn't have my own computer, being out on my own paying bills I couldn't quite afford one. I finally went back to college and got one (yay! that was such a big day for me), but I already had the PS2 so I never thought to put games on it - it was for school, for the internet, for making a printer work so I could turn in assignments, etc.
I know, I sound old but I'm only 29 for crying out loud!
So when my (now) fiance and I moved in, we both had PS2s, we both used them to play an MMO for some years, and eventually they started to die - incapable of playing anything OTHER than the MMO. I guess those things happen? In any case - it was time to get another gaming device.
I had my computer by then, and I had a laptop too (fancy dancy I know), but I didn't really consider them because they were the workhorses.
We bought a PS3, and we love it. - to be fair, he wanted an Xbox 360... but I persuaded him to stay with Playstation because I just like them better through familiarity.
Now... we're wondering if we should look into the other stuff, PC gaming, an Xbox finally, or another PS3 (we like to play at the same time... sharing is fun but after a few years you just wanna have convenience).
I really don't know what my next gaming system will be or what it will look like, but that's the story of why I've been console all my life.
Oh - we did put Starcraft II on the computer! It was a big discussion too, should it be there, should playtime interfere with regular computer use, ect, but it all worked out just fine.