Originally Posted by Bachiano
Owner said it is only been used 5 times and then stored for many year.
Right, but each of the 5 times was for 1000 hours continuous.
Do you know how many times I've heard that line? It's worse than buying a used car from a little old lady that only drove to church on Sundays.
If the tubes are mint, esp. the green, then maybe $500, but keep in mind that the set is 15 years old at this point, and parts do age even when just sitting there.
If the guy is under the impression that it's worth $1000s because it was about $25K new 15 years ago, walk away slowly.