Well it's official!
The year I bought my first changer (a vintage Atlas 10-10 knockoff) Tire Kingdom wanted $48 per wheel plus tax to dismount/mount without balance and with me taking the old tires.
That was a big "NOPE".
I lucked into that vintage changer 2 weeks later for $75.
Fortunately they were roller wheels for a project car, so I wasn't in a hurry.
That worked out so well, that I invested in the balancer so I could do the complete operation for my old cars.
...and that worked out so well I invested in the rim clamp, so I could also do my modern cars.