I own Bioshock, but I still dl'ed the cracks for it because I dont want to deal with the hassle of activating it.
There's some notion that if you need to upgrade you comp you lose an install license. Not true; BioWare has an "de-license" program that you run and you won't lose that license. Inconvenient? Sure, but nothing to go wild over, and certainly nothing to deny yourself a good time from a good game for.