Since the iPhone 4 was announced, I've been very interested in upgrading to it. In particular, the promise of a better camera attracted me a lot; upgrading my iPhone's camera would enable me to take better pictures without making me learn to carry a bigger camera with me.
But I got the iPhone 3GS last year, so AT&T would charge me $499 to upgrade my iPhone. I could afford that - but I think it's very plausible that next year's iPhone will be just as much of a leap in coolness over the iPhone 4. So I felt that I was choosing between a lifestyle of upgrading my phone every year for $500 a year, or upgrading every other year at a cost of $150 a year - and that's enough of a difference that that made me dither.
But last Thursday, I realized that Lori's phone was eligible for a $299 upgrade, and she was willing to let me use her upgrade. And apparently I had anchored on the $499 price as my point of dithering; once I realized that there was a cheaper option, I went for it like a shot, without any dithering at all.
I received my iPhone 4 today. I'm only waiting to activate it to make sure that it gets activated with my phone number, not Lori's.