I've already pledged for a boxed version, but I'm holding off on the big bucks till I hear more concrete DRM plans. To be honest, I was very surprised to hear they didn't outright say it was DRM free. I thought it was publishers who insisted on DRM? (Though, aren't we technically their publishers now?)
I'm OKAY with a disk-check (maybe just during installation? My CD drive is loud), but I absolutely hate anything with online activation/verification or whatever. I collect quite a bit of games too, and I don't like the possibility of being unable to install my game 10-20 years down the line because the server's gone or no longer supported. That's already assuming I even have access to the internet or live in an area with internet. (Hey, you never know what might happen and I'm sure I'm not the only one who has gone through periods without internet access.)