I saw an Amish man at the local grocery store a few weeks ago and his clothing was all hand made (well, the clothing I could see, anyway). I didn't see any horse and buggy, so he either had someone drive him there, or somehow drove himself.
There are many Amish/Mennonite settlements in the north-east Wisconsin area. I have found that if they need to use something that we use, they aren't afraid to try it. I remember one of the young guys driving around on a tractor (helping out a local non-Amish farmer) and he sure thought he was Joe Cool.