Well, you're right, Rock - as I listen to this amp I am quite happy, and if I'm inclined to upgrade, it's now the preamp.
I guess I'm just surprised how much amp I got for my $500.
BTW, I popped the hood of the Forte and wow: what a beautifully simple design! I don't know why I was expecting something much more complicated, but I can actually understand the circuit and it is layed out so cleanly. Really have respect for Mr. Pass as a designer.