I'm with Drrdiamond.
I have just the number of amps I need and sell the rest off.
Of course I do have two extra, about to be returned upgraded and rebuilt Tenor 300 Hybrids, with the warranty, but I'm not counting them.
It's taken two years to get around to having them repaired and back to work. By the time I get them back I hear Tenor may be back in business. Wouldn't that be funny, keeping amps from an out or business manufacturer long enough to have them worth what they should be selling for.
Oh, yeah about the extra amps, I don't have any.