Certainly quite a market for it. I don't think many domain investors know that industry very well, even though it's quite popular. You'll probably need to get some content on there if you want to make a significant sale to a reseller. Unfortunately, you're probably not going to have much luck with end users; they're more likely to stick to new registrations.
I recommend adding content, even if it's minimal. You could even offer to host some small wiki or something that's just getting going and is low on resources--there are plenty out there. (Just keep in mind that they won't be happy if you sell the domain later.)