Hi pearsall001,
Everybody will love that. But many manufacturers try, and they all fail, more or less. It just doesn't last. And that's precisely what I was saying.
I'm not against NAD or DENON or ONKYO or INTEGRA or ANTHEM or LEXICON or MERIDIAN or THETA DIGITAL or SIMAUDIO or KRELL or JBL or CLASSE or any other manufacturer that try to make their products upgradeable by slot cards from newer circuit board modules. But so far, we're still swimming in deep waters.
And you are absolutely right; we'll have to tune in next year, and the year after next year, to see how we're doing.
But I did explain my point of view (my personal vision) on my previous post.
I'm sure it will come eventually, but you and I, won't be here anymore to benefit from it.

I like your optimism though.
Cheers,
Bob