Nah, I don't think I've really bought much at all for investment...maybe my Ronnie BRewers, which failed, but even that had an interest/attachment to it rather than straight out money.
When he was named MVP, his RC's were red hot! They usually tend to drop off during the season. Don't be overly suprised if they picked up again during the playoffs!
Yeah I had about 10 enquries but no-one replys to PM's...its sad really. You simply cannot sell high end cards on this site. Everyone expects bargain basement prices.