That sounds like it has potential! Lots of people don't care for sewing on binding. I wish I could offer practical advice on pricing. From various pricing discussions we've had here, the method that makes most sense to me for hand sewing, is charging a certain amount per a certain length of thread, as some hand quilters said they did. This eliminates time from the equation, so whether you're a fast or slow sewer wouldn't impact the price. I probably wouldn't use such a service myself, but it seems like there could be a market for it.