Jan,
Eight days ago I asked a seller on ebay for his "Buy it Now" price for a pair of Vintage Triumph Motorcycle Tank Badges... He had them listed starting at $2 with no reserve....
He said the exactly same thing you said... I won the auction for $2.35... I would have paid him $80!... The same thing happened on a Vintage watch... "Let the auction run" the guy said, I bought his $500 watch for $39 because no one else bid...
Original Tank Badges for Triumph
Item condition: Used
Ended: Apr 03, 201218:25:00 PDT
Winning bid: US $2.35
Remember these are used shocks that are still available new from LaJolla for around $400...
I think that it is smart to set a Buy it Now price that is fair and sometimes you will be in a much better place at the end...