Maybe if the
price prize is the stuff that he didn't use anymore.
And the price is significant but not significant enough to go to the Ebay..
So the contest will help him to get rid of unwanted stuff
for example, bunch of dev board, which maybe he will not use and essentially have no value on ebay..
Or some cheap T&M after teardown, like $50 DMM that dave only want to smash with hammer..