As the pump wrangler for several different nonprofits, I've dealt with more chucks than a convention of Charleses held in a beef meat locker.
All chucks eventually wear out, from the cheapest overseas versions to the finest Silcas and Lezynes. Ones used at a shop, co-op, or nonprofit even more so. The more-expensive ones can often be rebuilt, but at a price point that's higher than just getting a lower-class but usable replacement.
A threaded connection can be used, but is often time-consuming to thread on, and when unscrewing can leak air if not performed quickly. I like threaded Schrader connections for one reason - I can thread a replacement head on quickly as needed.
A bigger problem is chucks that don't work correctly or leak right out of the box. I just had the unpleasant experience of having an entire shipment of brand new Planet Bike dual chucks leak badly around the valve in Schrader mode, regardless of reseating, tube, or bike. They were OK on the Presta side, but Schrader gets used a lot more often. That being said, the Planet Bike auto head works great with no leaks on all the same Schrader tubes. Planet Bike is aware and making it up to us.
Since at the co-op the valve ratio is about 80% Schrader (and at some nonprofits nearly 100% Schrader), I equip most of the floor pumps with inexpensive yet durable all-metal Schrader-only heads
like these ones on Amazon. But we still have some Presta-capable pumps for when it's needed, and we're reasonably happy with the Planet Bike auto head, even though there is a problem with some customers unscrewing and dismantling the chuck to fix perceived or imaginary problems, or just to appropriate the innards. The dual-head chucks are much more resistant to such dismantling, but those have problems with leakage as noted above.