Of course they would! Manufacturers would like nothing better than for us to buy their products, use them briefly and discard them in favor of their newest model. That's how the term "planned obsolescence" originated.Lamm must be missing the boat since their model M1.2 Reference amps that I own have not been changed since they were first introduced in 2004. Longevity......greener than recycling.
I wrote to a cable manufacturer, asking him if I could pay him to shorten and reterminate a pair of expensive interconnects that I was thinking of buying on the secondhand market. His answer was, of course, 'no'.Cardas has done this for me twice, as has Star Sound.
Steve McCormack has twice turned my old used McCormack gear into absolutely fantastic sounding, compete with anything, showpieces.
You should deal with a better class of manufacturer, there are many out there.