Thank you for the responses.
Yes, Qbin, I believe you are right. Last week I purchased a SC-55 mkii for $143 (no additional shipping cost) from an eBay seller in Japan. It is supposed to be in excellent condition.
And just now I purchased the MT-32 (described in my original post) from another Japanese eBay seller for $170 (plus $48 shipping). Yes, I probably overpaid. But I'm fine with it. I have had these same model units in the past, though originally I had the rev. 0 "old" type. I still have my old midi cables that I had previously used. I had given the units to family members, and now I want my own units again.
Yep, fitzpatr, good point. I agree and noticed the same thing. In previous discussions there seemed to be confusion at times about whether people were talking about the "new" vs "old" Roland MT-32 or the differences between the two "old" types.