Ya, we can ask whatever we want, all we have to do is pay eBay. I don't know if asking a wild price is evidence it is worth it, but if somebody buys and you get paid, I guess it was, at least that time it was to somebody.
According to this link , this was one of the first 50 titles released on CD by Sony on October 1, 1982. I recently happened upon a mint CD of this title. Given that this title most likely wasn't distributed outside of Asia, I would think there aren't that many discs pressed.
Otherwise, I have a good number of Hong Kong pop CDs pressed in West Germany/Japan between 1983-1986 that are fetching upwards of US$120.00 on internet auction.
My only real rarity is the original Japanese pressing of Bruce Springsteen's Nebraska. They initially used the wrong master tape that was, it most opinions, better sounding the mix used for the "official" U.S. release and included an extended version of one song. I actually paid almost $50 for it about fifteen years ago. Be interesting to see what it's worth right now.