I was at my county fair on Monday and saw what I thought was a Dear Jane quilt. As all the quilts were displayed a good 5 feet away and all were folded so you could only see maybe a1/4 of the quilt, you couldn't inspect it closely. Lucky for me there was a lady there working and I asked about it. When she told me it was a pre-printed fabric (aka cheater, never heard that term before) I was shocked. The quilting work on it was truly impressive and from 5 ft away you certainly couldn't tell!
Also I think that is a great idea to use preprinted blocks (I think I like that term better then cheater) for both machine and hand quilting practice.