I have a Craftsman with a 10" pad that I bought in the early 90's. In recent years, it has been in the attic as I realized nothing beats good 'ol fashioned elbow grease.
The buffer only really works on the flat surfaces anyway, and is okay for applying a final wax, but for using cleaner wax on a white car to get out minor stains and such, got to do it by hand.
97 T-Bird LX 4.6 - 80k miles
94 Supra TT Auto - street/strip car
04 CVPI- Brenda's car - 76k miles
95 T-Bird LX 4.6 - fully optioned, owned 15 years, 220k miles
96 Cougar XR-7 4.6- Brenda's car, owned 11 years, 187k miles
88 T-Bird 3.8 - first T-Bird, owned 5 years, 206k miles