Found Perfect Amp For My Needs, But Is It Too Old?

While traveling last fall, I visited an old friend in Houston. Knowing I have, for a very long time, been serious about audio,and music, he introduced me to a neighbor, that he knew was also of like mind. I spent the better part of an evening listening to his wonderful system and talking audio.

What struck me the most about his system, a number of components of which I was familiar with, were the Jeff Rowland Model 6 mono's, which literally produced the best sound I have ever heard from a solid state amplifier (and I've been a died in the wool tubes guy). He was even kind enough to take the time to allow me to hear them connected to the preamp and cd player from his "office system" the Modwright LS100, and the Oppo Model 95, both of which I own.

My question surrounds the question of long term reliability, and/or servicing that older Rowland amplifiers might need. His performed perfectly, but the situation with those is likely a somewhat unusual case. He was the original owner, and purchased them locally. Since then, thay have never moved from their original place of installation in his listening room, while also being connected to dedicated power, as well as expensive power conditioning equipment. A rare, optimum situation.

I seem to recall reading often that caps need replacement in older amplifiers. And I expect servicing of the amplifers by Rowland might well cost very serious money. Possibly as much as buying some amplifiers?

Having heard those Model 6 monoblocks, I would dearly love to locate and buy a pair. But I need to be able to count on twenty years of service due to certain recent events. These would resolve an issue I've had since last year, in being unable to uncover any tubed amplifiers that will produce the power I need, that I can afford, and which will also not massively overheat my small listening area. And my experimentation with solid state has been less than completely satisfying.

Of course the other problem I am facing is that the Model 6's almost never appear for sale. Granted, there are a rare pair for sale at the moment, here, but both faceplates are badly scratched, and the asking price is far too high in that condition.