It's funny when people talk about the Amish as if their assured piety somehow comes from genetics or something. The truth is, the Amish have ALWAYS sought for 'loopholes' in their situation - what the Bishops allow for is a different tale altogether.
I could give you LOTS of examples, but here's a oldie AND a goodie. Back in the early 90's, I worked for a Commodore dealer in Lancaster County, PA (BIG Amish and Mennonite community). C= had kind of a non-sequitur deal: Buy an Amiga 500 bundled with a 1080 monitor, get a 'free' VCR - which was kinda silly. The A500 had no color composite out, so actually hooking it up to a VCR required this phallic-looking 6 inch long module (the A520), which of course, was not included.
The Old Order Mennonites and even a few of the younger Amish were buying into this deal - big time. We sold more A500s than ever during this time - and the vast majority were going to that community. While the A500 didn't have a true color composite out (C= = STUPID!), the VCR did, and it just so happened that the monitor that came with the bundle did as well. I found out what was going on when I suggested to a conservative-looking young couple that, with an antenna connected to the VCR's tuner, you could actually watch TV on the monitor.
I was taken aback by their shocked and seemingly terrified response, "Oh no! Don't SAY THAT! We don't want to watch TV on it!" What they DID want to watch was VHS video though. Because the Bishops were not up on the latest technology, they could claim that the computer system was the primary purpose of the deal - the VCR would not be mentioned, and they could watch all the tapes they wanted in the secluded privacy of their bedrooms.
Today, if you see an Amish or Mennonite woman on the stoop of their house, cradling something close to their ear, you can bet it's a cell phone. There are cell vendors who specifically cater to the Amish's 'cash only' lifestyle.
Folks, the Amish are as human as any of us. There are pious ones, but many are essentially trapped in a lifestyle out of necessity. Imagine this: With only an 8th grade education, and all of your friends and family belonging to the community, you'd probably stay because you'd fear the total abandonment of the only life you've ever known. But that doesn't mean they don't get rebellious or 'get up to dickens'... ;)