I've argued against this so many times, and in all honesty, it's a pitiful excuse to not just get the damn console to play the exclusive you want so badly.
I especially see this with PS3 exclusives sadly. You have no idea how many times I've seen people go "Ohmigod! The PS3 has no good games!" or some variation thereof, and then proceed to go "Ohmigod! I so wish InFamous/Ratchet and Clank/Resistance/Heavy Rain/MAG/Uncharted/Gran Turismo/Metal Gear Solid 4/The Last Guardian/etc... will come to 360/PC!!!"
It's a little concept called saving up. You learn that very early in your life that if you want something bad enough, and it costs money, you save up your damn money. You don't whine to the company to make it exclusively for you. Hell, the Ps3 isn't even that expensive anymore for Christ's sake, and I got one at the original $600 so you have no place to complain!
I hate to be "that guy", but really, I've seen this stupid argument so many times that it's just getting annoying (especially for the Sony Fanboy within me.....he wants blood!)
Exclusives are a part of the video game industry, deal with it. Either save up the money to get the console/parts to upgrade your PC or just forget about it.
EDIT: *head desks repeatedly* God damnit, just looking at the posts above me prove my point...