I admit, but what matters to me is that the number of PPC Amigas is far less than the "classic" 68k ones right now.
And we, all amigans, have already a 68k processor (in a physical form or "emulated in software"), so we'll benefit for an updated "classic OS" on our old machines (and emulators).
This means you haven't to spend much money (also nothing) for improvements.
On the other end, following the PPC way, you have to buy new hardware, already proven to be very expensive (for the average pockets, at least), for a processor family whose life expectancy is far for being clear nor long (I know IBM is going on with it, but for how long?).
Some amigans already have PPC machines.
So the option of a FPGA-based processor (could be done forever if we have access to complex programmable logic) or backwards compatibility through software emulation on common hardware, is the most comfortable, cheap, valuable, long life way to go (in my opinion, of course).
But you have to buy those machine with a FPGA processor, it's the same point you were making for PPC.
Besides, all this doesn't make the 68k range CPU less dead.
Varthall