If it doesn't get released, can't you eventually find a fan translation of it and just pirate it?
I remember when the system first came out, most people who wanted one just used it for emulation. Sure, now there's plenty of good games worth buying but if you're already used to using it for free software I don't think you'd be willing to start paying for software later.
I don't have one but I'm hoping to come across one at a yard sale at some point with the Castlevania Dracula X collection, besides that game I can't think of any titles I'd want except for the various RPGs which seem to get released for it yet I can't remember the names of. To me nothing really stands out as must haves.