I bought my Juno-6 in 1999 for $250 or something like that. I sold it a few years ago for $400 when prices were starting to rise. It needed servicing (some keys were double triggering, etc.), so it wasn't a bad deal, and I still made out on it.

Would I pay what people are asking for them now? No. There are alternatives out there that are close enough for a lot cheaper. Some people lust for the authenticity, but I don't think the Juno-6/60 are worth fetishicizing as much as something like a Model D or Jupiter 8. Ah well, hipster halo effect. What can you do?