Why does Cary Audio keep discontinuing good amps?

I don't think they just kill off amps on a regular basis. The v-12 went through three iterations: v-12; v-12.I and v-12R. If I'm not mistaken, the v-12 in its various forms was in production for over ten years. I believe the CAD120 is doing the same thing with the newer II model. Both great amps, btw.

Dennis since 2009 isn't the big cheese anymore, he's retired. Maybe the new big cheese doesn't know what he wants. BTW I still have 2 stereo V12R's I pull out periodically for a change of pace. Still sound good.

It's not just Cary,as suggested by others.What we lose sight of as audio enthusiasts is that audio companies are a business whose primary goal is to make money,if not for themselves than the shareholder.
In order to achieve this goal,like the car industry,they have to continually evolve their products.And yes unfortunately some top tier gear becomes obsolete.It's cocktail hour what do I know.

I bought that V12 R only a few months ago and absolutely LOVE it. I agree, it has to be a good design...

As Russe41 said, Had is not in charge anymore. The new leadership is trying to streamline the offerings. My guess is they are dropping things that do not sell very well, have too low margins or are difficult to make, possibly because of parts issues. This is pretty common when the founder hands over the reigns. These products were Had's products, not the new management's. But, as far as I can tell, the mainstream products are certainly still there.