You know, years ago I had a Roland S760. The sounds were great. Mine only had 8MB RAM and the sounds still shined. With that, I don't see the problem of Roland releasing something like this. It's the same reason that my mouth drops when someone tells me that the song they wrote comes from a 1989 Ensoniq EPS+. The stock sounds on the Ensoniq suck, but because you can sample, it makes the machine even more useful.
I also have some old S760 CD's lying around. It'd be wonderful if I could use them along with my XP60.