Most people who turn to the "Dark Side" and go to coil springs do so because of cost factors (they have limited funds) and or lack of ability to run down a compressor or electrical problem. Keeping your air ride gives you the ability to lower or raise your car height with just a tweak of a button if you wish. It also is not that difficult to maintain and there is excellent product and support at American Air Systems. The weak point on the air springs is the rubber bladder which develops micro cracks over time and start to leak. The primary cause for compressor failure is rust that forms from moisture that builds in a system over time (due to leaks or weather conditions). This issue can be addressed with the addition of the Spider Valve that American Air offers. In my opinion the stock air suspension has much more going for it performance wise and they also are fairly reliable.