RPGA - I don't see how the present RPGA is any different from the RPGA of the past few years.
To be fair, the RPGA is actually explicitly mentioned (in a sidebar) at least once in the 4E PHB. It wasn't ever mentioned in any rulebooks in previous editions to my knowledge. Funny thing to have bother you, but different regardless.
The thing that really stupefies me about 4E is how many people bought the books without surveying them or researching them first.
I don't like 4E. So I didn't buy the books.
I think this is a great question.Why does everyone feel the need to do these public exit things that they don't really mean?
Incompleteness of the Books - There's another thread on the matter but as far as I'm concerned, it's complete. It doesn't have all the options 3.5 has, or even AD&D, but it's certainly more content compared to when the original D&D got released.