Bags have come a long way in durability and reliability from years past. Think of the bags on semi trucks...yes they can fail, but after how many thousands if not hundreds of thousands of miles? Now, others out there may try to cut cost and buy whatever is cheapest and you will, get what you paid for. You have to pay to play. I did a lot of reseach, talked to several fabricators and people in the industry before deciding to go the route I did with the bags, compressors, tank and especially the air lines. Btw...the air lines are some of the only certified d.o.t. rated lines available and they are the same used on commercial trucks. The tank too...is the only d.o.t. rated tank and is made of aluminum NOT steel. The compressors are 100 percent duty rated and again are not the Chinese made junk. People that are not familiar with air ride setups are often too quick to bash the idea. Unless you know all of the facts and have actually built, driven and have a current air ride setup...then all you have is an opinion based on speculation instead of facts. The starting air ride setup is gonna set you back about $750 on the cheap....my setup exceeded $3500.. but I wanted reliability and quality components and was willing to dig deeper to get the best avaiable for my truck. Some may say I paid too much, but at the end of the day, it's my money and my truck.
To the p.o....If you do decide on coil overs just make sure to invest in those that are rebuildable. There are several option available on the market. The ride quality will not compare to full bags. You will have to adjust the coil overs to yiur liking and your setup. Air bags versus coilovers are apples to oranges. Imo coilovers are a bit too stiff for my purposes and build.