Every single last person I've talked to in person has said essentially the same thing. I wonder if that's what keeps the price dropping...
I figure that most people, even conserving, can't go more than a week or so between fillups. In my case, assuming a fillup becomes an option at a half tank down to E, that's a difference of only a couple days.
I think the real reason is that a number of wells ended up opening/increasing production due to the high price motivating companies to do it, plus the price shock actually got americans conserving gasoline. Demand dropped, supply levels rose, natural economic controls drop the price.
- Filled up at $2.89 two days ago, was $2.99 that morning, now it's $2.79.