I wouldn't mind seeing the price of gasoline double and the price of diesel drop to < $2.00/gal (along with biodiesel becoming more common). Cheaper diesel means less money spent by the trucking companies on fuel so transporting goods won't cost as much.. Higher gasoline prices hopefully means people will drive less and seek alternate forms of transportation. Heck, make sure the gas price increase is mostly in taxes so it's not the oil companies that are making all the money off the price hike. It'll never happen, but it'd be neat to see.