Its pure income as it fills a hole within their game release plans, whether we agree with it or not. The nostalgia alone will get people to buy into the game for sure, just like @RenFengge says. I'd like to experience it....but its hugely disappointing that the MP isn't going to come with the whole remastered product. I remember @JsinOwl banging on for it so much back in the day I ended up picking up ME2 and 3 to try it out.
I think it has to because the controls will be extremely outdated and far too clunky for this gaming generation. It will easily take the shine, from what i've read here before, an amazing story.