Having been around studios for three decades, I never see their products around. I do see it in the homes of many artists though, for personal playback. Very few pro reference companies cross over, although you can buy such respected brands as ATC and Bryston, which have a loyal following amongst studio engineers. They sell consumer electronics as well.
I personally love McIntosh. I think some of their products are sublime, including the 275 tube amp and some of their recent solid state ones. And they hold their value. Not a lot of brands can say that in this fickle audiophile world, where "trading up" usually entails a 50 to 80% depreciation.