DaCostaBR: I believe part of the problem is making it work. There are the fan made patches that already do that, but getting a publisher's permission to include all these third party modifications to the product they intend to sell must be some sort of legal minefield.
GaminggUy45: Why not just include a link to the patch on the game page?
GOG's thing is making older games run on modern systems without needing any work, you just double click the installer and it's done, but if they don't include the many, many fixes on the patches (seriously I played v7.9 and it still crashed a couple of times) then their installer would flat out not work. Regardless of whether or not we can do it ourselves, it goes against the company's intended goal.
Besides, if making the game run falls on my shoulders then, outside of the DRM, there's almost no difference between this and Steam's version, and I don't think that's what people want.
The reason I want GOG to carry the game is so it finally exists a version that I can point at to my less computer-savvy friends and say: "That game is great" without needing to add a huge asterisk about all the work they'd have to do to make it great.