Why is the market for used Levinson amps so slow?

Levinson 331/332/333/335/336 and 33H used Philips Capacitors these caps were made in China. They are junk.
Two years ago i purchased a Levinson 331 with humming from left channel for $1100 including shipping on Ebay. I replaced all 8 filter caps with USA made high end Cornell Dubilier and sold it on ebay for 2500 dollars.

Levinson is a very good amp. I have sold quality high end USA made caps for all of these Levinsons. All of these amps are working great. These caps are special order item from CDE,Nichicon and Tech Cap.

IVROBINSON. Your Levinson had the caps replaced I am sure you can sell it for much higher than 2100 dollars. Many will not buy these Levinson with out the cap replacemet.
Levinson repair center charges 1800 to 30000 for this job. Also they use United Chemicon caps for replacement. The Cornell Dubilier is lot better cap for filter supply.

The conclusion I'm drawing is that the ML amp market is down and slower because of the perception of reliability issues, customer service issues, and the high cost of parts and service. In the end it doesn't matter whether or not I agree with any of this, you guys have convinced me these are very likely the reasons. Thanks.

I don't think we have established that there is a problem. I've owned seven ML components in the past 15 years and have had no reliability problems, other than when two fuses blew in a power amp, do to my own incompetence. I recently traded up a #431 for a #532, the #431 was sold before it arrived at the dealers and for three quarters of the new price. Most of the responses above seem to be speculation rather than facts.
One other thing to consider is that back in the day, there were three undisputed high end brands Levinson, Krell and Roland, there was much controversy about which was number one but it was always one of the three. Now there are more great brands that you could name.

Tmsorrosk,
The ML amp issues seem to center around the 300 series model(bad/poor quality capacitors). Your amplifiers are a different series/model and likely used better caps. I`m sure not 'every' 300 series amp owner had problems,but enough did to make this a legitimate concern.

Tmsorosk, first of all, it's Rowland, as in Jeff Rowland. Secondly, no it wasn't the big 3, everyone knows that no high end SS list is complete without Nelson Pass and his Threshold/Pass designs. Some might argue that Boulder and others deserve to be on that list too.

Also, that is just a list of high end American SS designers. You also have high end SS from other countries. I won't even bother to start listing high end SS international brands.
So it definitely WAS NOT always one of those 3 you mentioned as to who was number 1. They were/are 3 big names, let's just leave it at that.