Posted By:
jay wolt"And Bruce offered him more than a fair price. Sure, a decade later it looks cheap, but everything increases in value over time"
Barry, not everything.
As I have tons of late 1980's baseball cards that have little or no value, 20 years later. 
With that said, say the Bruces transaction of $1400 turned out to be way
overpriced and a decade later he sold the Boston Garter for half that amount.
Would he contact the seller and demand some money back?
Though it would have been a gracious gesture for the Bruces to send the buyer
a nice gift or a few $$$ after his windfall sale.
I've done that on a few occasions where I did well on the resale end.
Makes me sleep better at night and ya can't have enough good karma