If Nvidia released a statement that outlined their road map for the 800 Series and told us what to expect in the high end cards, I would have nothing to say. If they told us the GTX880 is the direct replacement for the GTX770(or 780 which it is not), whatever, but there will be a Titan 2 based on 20nm with 512bit memory bus with a more gaming targeted card, a GTX880Ti (20nm) or GTX880 Ultra, I wouldn't have much else to say.
I personally want to PLAN my next upgrade and get the card that best suits my requirements... desires.. DESIRE! I am willing to bet they would sell more cards sooner if people knew what to expect. People don't want to jump on a GTX880 without knowing what's coming down the road in the darkness. However, like someone said, if someone is coming from a GTX660 or GTX570, something in that lower tier or older gen a GTX880 at $450 may be just wonderful and they don't need to know whats in the higher tiers. However, there are a lot of us with GTX680's or GTX770's (same dang card) that WANT to know what the top dog will be in the 800 Series.