I was looking around and I don't think this has really been mentioned yet. If you are unsure wether to upgrade to the Bionic now or wait to see what the field is like later, you can do both! Costco has a 90 day return policy meaning that you can return it and get whatever's better down the road, that's about the week before Christmas if you were to buy it today! That is good.
I still want to sell my DX and get some money from it before it goes down in price even more. This is the answer! =)