It is in the computing world. Also the intel transition was announced 3 years ago.
Anyone who bought a PPC Mac after the transition started (especially in 06 after some intel macs were already shipping) should have thought about it more carefully. Expecting Apple to support these machines for the long haul was stupid.
The people who did buy the first gen Intel Macs were hurting if they were trying to run CS2 and it made perfect sense to buy PPC if you wanted to be remotely productive