Cheapest way to get an inch or 2...

I've had air shocks on mine for 18 years and 190,000 miles. It's all in the amount of air pressure for longevity and ride. I've only had to replace one because my sway bar mount cut the air bellow. If you need an inch to level the car out they're great. If you are going for the high jacker look go with new springs and expect bad oversteer.