In Japan you'd get anywhere from $30~$100 for an MP130. With all the extras, closer to $100 maybe. I've seen a fully-loaded MP2100 with modem, keyboard & network card, w/box & manuals go for around $700- I'm not kidding.
Japan is a great place to sell old Apple hardware, you'll get great prices. I think the main reason is because Apple hardware- especially older hardware- is getting rare. I got an Apple Portable off an auction for around $400, there's only like 100 or something in Japan. I also got a TAM off an auction- the seller had everything but the FM tuner. There are even fewer TAMs in Japan than portables (forget trying to find a LISA, you'll have to wait until someone dies first.)
I've noticed that in Japan the sellers (especially Apple collectors) tend to keep every last piece that came with their Macs. Of course, they charge a price for it 🙂