TBH I would buy the whole again, pay full or even double the price AGAIN, but I'm not on Steam and never will be on Steam. I only buy where I can be sure 100% offline DRM freedom is possible, so that's why I am HERE on itch.io and on gog.com. I wouldn't even want a Steam key for free1! Steam is evil!
Only releasing the remake on Steam therefore is, in my opinion, complete and utter garbage. I boycott that platform now and forever... too bad really... I would have loved the remake. I am really sad about your choice of platform.