That doesn't mean that full frame won't be offered in significantly cheaper DSLRS, of course they will be.

10 years ago, could you have predicted that 4gb flash drives would be in the dollar bin at 7/11? You may have even been inclined to think that Zip drives would catch on and become the standard medium...

Just for clarification: I'm not saying that polymagnesium/relatively high performance full frame slrs are the future, just full frame on its own.

So, even 10 years from now, a full frame DSLR will still cost $1000 more than a comparable APS DSLR
Okay, I'll mark your words and you can mark mine. Time will tell this one ;)
In any event its a moot issue, full frame lens still give a greater sweet spot, which is reason enough on its own and the point of the argument in the first place, whether or not to get full frame lens .

Curious - which semiconductor company? What clients did you sell those CMOS sensors to?

5 years ago I had this same conversation with Nikon fans, I insisted that CMOS was the future and that CCD was a dying technology, 5 years later and while CCD is still commonly used, it is *crystal clear* that CMOS is the sensor technology of the future, undeniable at this point.