Well they made several hundred of the GBA1000, a large four layer board with tons of thru-holes and SMT, and it cost me $56 plus shipping.
Now, that's just the board I know, but really, how expensive can a lot of Radeon 7000 chips be? The RAM for 'em isn't even expensive nowadays, it is several generations behind what's hot now. And, even if it were $479 like the PicassoIV was, people would still buy it. You could sell 500 of those. Although, at this point, I'd probably like to see a little hotter chip in there like an 8500 or 9000, though there's no way ZIII could push it real hard.
Hey, since we're blue skyin' here :-)
Maybe Jens could make the glue logic and sandwich a PCI Radeon onto a Zorro interface board like he did with the Xsurf and dirt cheap ISA network cards :-) Brilliant marketing and resource utilization, that!