There was a rather large amount of hatred for Steam when it first came out. I was one of the haters, so I remember it pretty clearly. We had a lot of reason to doubt, but we were won over as Valve kept improving the platform and didn't end up using it for the evil we expected they would.

Having once been a Linux Desktop evangelist, and knowing what I do about modern Linux Desktops, I feel I can safely say that very few people are going to be won over by it.