Pity the poor ******** who have to wait six years between each book
But yeah, I legitimately can't see any way for the series to not last another decade - George R R Martin is just too slow a writer.
I intend to read the books after the TV series. Right now I'm loving the GoT TV series - but inevidably when you discuss it in a group, one of five people say "well it's good, but the books are better" or "they're deviating from the story" etc and I just think reading the books has ruined their capacity to enjoy the TV series - and I know I'd be the same. Bet George R R Martin is loving the delay.