[steverb]

One word: Enterprise.

I currently contract for a company with 50,000 + employees and some pretty specialized software that way too many people need to access. Getting that to change is like turning a convoy of sea liners with no radio communication.

The programmers who actually understand the weird ass domain of that software really wish they were still writing COBOL on a mainframe, the users who know how to use the software are understandably reluctant to have to learn another application when the existing works fine for THEIR needs (and job security). We have succeeded in getting a lot of stuff transferred to Citrix servers, but there are still a few hold outs / problem areas.

So, yeah, sometimes we really need the existing old stuff to still work.