I think it's perfectly reasonable to want to wait for the errata to get incorporated into a new printing of the books, and they should have done that several times by now as new printings take place.
In fact, there are probably a lot of people who would buy new books, in addition to the ones they already have, just for the convenience of having the errata. I suspect there are DMs who would do that, and give their non-errata'ed book to one of their players who never got around to buying them.
It's a lost opportunity, and a relatively inexpensive means of making a decent amount of money.
And talking about this issue in this sub-forum seems fine to me. It fits better in a 4e rules forum than it does in an RPG general forum.