For the $20-30,000 to buy a economy car, I can buy ALOT of fuel for my truck.
True, but with fuel you are litterally flushing money down the drain, at least if you buy a car you have some sort of equity.
I am not saying you should just buy a new car, but if you are already in the market for a new vehicle, then at this point in time you are a fool if you don't consider the price of fuel and economy.