I don't know why I get so angry at GRR Martin. It's his creation and he's welcome to take his time, but Goddamn it I hate that fat bastard sometimes.
It's his creation to do with as he pleases, but what started out as one of the best series in the genre in a long, long time, is now...Yesterday's news? No longer interesting? A lost cause? The last few books have been wandering and spinning in place; the final acts will be unveiled - even if through a distorting lense - in the show long before the books are published, and frankly, every option that makes sense has long been tried out and checked against Chekov's Guns and foreshadowing by an army of fans. Any possible ending will either be predicted and we'll be blasé, or it'll be some weird twist that doesn't fit narratively or hasn't been properly set up. After A Storm of Swords there was anticipation - what will happen? How will he tie it all together? There were still plenty of possible outcomes, different directions the story might go. Now? Eh.
Other, better, fantasy has since come and gone. The world isn't surprising anymore, the twists aren't novel. Not to echo
@Jay or anything, but The First Law came and passed and delivered since the last good Song of Ice and Fire book. I'd be more interested in seeing what happens further in that world by now.