The market is dead, else there would be tens if not hundreds of thousand of users out there, and growing by the day to be considered a minimal market. There will be no reigniting any old markets, that dye has been caste a very long time ago.
A lot of people are into retro gaming, but many games have a retro style and they're build in modern platform. So you get the same feeling as using a retro computer while having an experience beyond what a retro computer can give.
Kamelito