The Mcinstosh stuff is ok, but not nearly as dead-solid reliable and overbuilt as everyone here seems to think. I have seen and talked to first hand a repair tech here in the Northeast, who works full time servicing equipment, all high-end stuff. At least 1/2 of the stuff he gets that is broken is Mc stuff. From his discussions, he finds it really not all that reliable at all, and build quality to be nothing special.
Just because Mc products haven't changed style with the times (e.g., love it or hate it looks... most of it I dont' care for personally), doesnt' mean they are built the same as they were, or even all that well in general. Vintage looks = vintage looks. Nothing more to be inferred there. I am friends with a couple of Mc Dealers, and have seen/used/listened to the equipment extensively. The only product I really liked and would consider buying was the MC275 reissue amp. Everything else has been tubby and loose sounding (the tube amps). The solid-state amps (MC600, etc.) are better, but still not a match for the Levinson, Classe, etc. that I compared with. Overall, the Mc 'house-sound' is dark, and flabby in the bass. Tube choices could be better too, most of them are ho-hum kt88s and kt90s, not what I'd prefer personally. (more of an El34 person myself).
Agreed that the bug bites some people to induce deafness/blindness to other, obviously superior, choices. People buy Mc for several reasons, but it's not something I'd go out of my way to own. There is occasional speculation on their stuff too, notably the MC275 reissue and the Mc2000, both of which havent' really held their value or appreciated as expected. (to wit: the blowout prices of them here on Agon on occasion.)
Mc owners remind me of the typical mid-life-crisis Corvette owners. It's the closest analogy I can come up with.
FWIW,
-Ed