I've seen two Eggleston exhibitions, one at the Corcoran Gallery in Washington DC in 2008 and the other at the Cartier Foundation in Paris in 2010. Two things struck me. First, that the colors of the prints and his color sense in itself were breathtaking, obviously several degrees better than looking at reproductions in books: for example, there was a photo of a rack of Coke bottles that, in books, looked like a mediocre photo — but, in the print I saw, the color was stupendous. Second, many of the photographs said, to me, why is this a photograph?
As I recall, the Corcoran exhibition didn't have any huge prints — and the dye transfer prints often stood out much more than the C-prints. At the Cartier exhibition there were also inkjet prints that easily looked as good as the dye transfers. There were also a few huge inkjet prints but they were not deficient, and I didn't have the negative impression that the OP had in New York.
Alone in Bangkok essay on BURN Magazine