Mcintosh-Bad customer service?

I was preparing to buy a new pair Mcintosh MC501's from an authorized Mac dealer. I have been doing some research and found some incriminating threads on Audio Asylum about Mcintosh. One very lengthy thread was about a seller on E-bay who was forced to pull his ad by a Mcintosh lawyer. Another was about a frustrated buyer who couldn't get support in Russia. There are always isolated instances, but I am very concerned now. One of my main concerns is that Mcintosh will not honor any warranties after you sell it. That means if I later try to sell my amps on audiogon, the buyer gets no warranty! What are your thoughts! I am used to unbelievable service from Pass labs, and even Krell. I refuse to spend that kind of money to a company that treats me poorly after the sale. Should I be concerned?