Hometownkid confronts the QQ over on the forums, and wants to know why people think Blizzard is "wasting their time" when they do things like upgrade the Druid art and creating things like the Ulduar bosstiary when they could be making more quests or new PvP areas. Personally, you've never heard that argument from me -- like Hometownkid, I'm pretty sure there are different teams working on different things within the game, and it's hard to believe that one new piece of art would otherwise be a new form of quest. While Blizzard does take their sweet time, I still trust they're making new content as fast as they can.
But there is an argument there -- if Blizzard were a different company and didn't do things like make Failocalypse, would we all be level 100 by now? They've always said that they would update the graphics incrementally, but certainly other companies have revamped the whole game all at one time before. I guess the question here is: would you trade Blizzard's well-worn ways for the promise of more content?
I don't think Blizzard has been completely out of line, but sure, you could argue that because of the way they do things, they're slower on releases than other companies might be. But would you?