No, that means that over half of Japan isn't interested in buying CD's is what that means. And half of a country in turmoil also doesn't guarantee the other half isn't affected in some way by it. If New York suddenly sank into the ocean I know for dang sure I'd suspend my own personal frivolous spending to try to help, maybe that's just me.
And according to economics 101, if this CD sold for $200 in the US recently than the most current market value of the CD is... $200.
And sellers on THIS VERY SITE have this CD listed at $300. I know cause I asked him. So outside of eBay this CD is apparently worth something to someone. I've also spoken with members here and I've been told that in 2001 someone lost an auction and he bid $450. If eBay is the only place to find an item for sale than eBay is a damn fine way to determine what the market value is, scalpers or not. If it sells, you know the value regardless of how said value is found.