You have a very optimistic view. Everyone I know that went through the process took between six and ten years, in large part because INS/USCIS is so backlogged. None of them were from India, China or Philippines.
9 yrs and counting... :). I've lost all motivation to do anything fun/innovative with my life at this point with my 20's spent stuck in green card queue. I just feel like a resentful shell of my former self, a product of a failed nation/people.
Not really. Most people I know from the non-backlogged nations get their green cards in a few years. Part of having a good lawyer is knowing which processing centres to use. Some are definitely backlogged a very long time. I got mine in less than two years.