Some LBS's gouge on price, and the unwary/rushed pay them. It's a fact.
Bike mechanics over here are paid just over minimum wage of about £7.00 an hour. The LBS mentioned charges £30.00 an hour for their work. It's taken a while, but I now fix my own bikes from the bottom bracket up. And shop exclusively online: Ebay for tubes, tyres and chains, the other three retailers for tools and drive-chain parts.
What is a reasonable pay rate for shop mechanics (preferably in percentage over minimum wage), and what is a fair price for they're time (customer cost)?