Look,if the guy is happy just selling a one time break-even run of several hundred collector's edition PPC boards,then fine for him.
I've sent my personal view which is $500 is my limit on buying a new PPC board just to be different and run old Amiga apps.Which is why SAM has yet to grace my desk.Likewise $100 for an OS.
There is just too much cheap,proven x86 and Mac stuff out there.
My OPINION is most of the x86 PCs being bought today are vastly overpowered for the tasks they are doing.
Only the gamers and video enthusiasts push their machines.You don't need multiGHz for email,bank statements,web browsing is still limited by the ISP more than the user's cpu.But we LIKE driving Ferraris 30mph to the grocery store because they look cool!
It is only we get all huffy because others won't follow our advice that it becomes a problem.