How much is to much? Air hitches, bags, pin boxes

[DHayden]

I currently have a gooseneck and I'm in the market for a toyhauler while prices are low. I think I am sold on air ride technology but my question is this: How much is too much? What is the best combination?
There are air ride hitches, air bags, air suspension (kelderman)and air pin boxes.
Pin boxes - Great systems like 5th air that cushion and help stop forward and aft slop, cushions connection between truck and trailer but can only stay on one trailer.

Air hitches - cushion connection between truck and trailer, works on all trailers.

Air suspension - cushion between sprung and unsprung weight on the truck, I'm sure obsorbs trailer weight and ride characteristics nicely.

In my mind an air ride hitch and air suspension would be great considering the area's each one helps take care of. But is the ride worth the cost? which ONE system is most effective? Which 2? Would 3 be even better or would all the "air" connections start having negative effects with to much "slop" for lack of a better word.

Didnt talk about air bags as I dont personally consider them a true "air connection" I'm sure they help support load and maybe improve ride quality but I'm more interested in the true "air" effect of a suspension that removes the springs.