I wouldn’t compare the add on airbags with the factory air suspension. I’ve had both. The Mercedes GL/GLE class has air suspension in and it’s like floating on air going down the highway. My diesel pusher motorhome is the same type of setup. Air suspension is pretty amazing when it comes to ride quality but I personally would not want it for more technical off-roading like I do in my Jeep or Scout sometimes.Which has the better ride quality between the two? I'm assuming air suspension?
On the add-on air bags, I have used these for towing heavy loads and it only adds more support to existing suspension. Even at minimum psi (5), it makes the ride a bit stiffer imo.
Like others have said, I think making air suspension optional is a good thing.