If any PSA graded cards might go down in value it is this one, IMO.

Currently sells in the $25,000 range for PSA-10..there sure seems to be a LOT of high grade examples that have come out of hiding.

I'm not sure what the population report says, but there seems to be quite a few out there, and the prices have started to slowly decline.

I don't collect basketball, but some of those early Star Co. sets are truly rare and seem to be a better investment, IMO..