Where I live we have a lot of mobile bike mechanics that will come to you. The prices tend to be lower than an LBS, they have no problem installing customer-supplied parts, and I dare say they perform better work since their only job is repair. I don't know why anyone in a major city would even go to an LBS these days.
One thing that irks me about these threads is that when people complain that something is too expensive, sometimes justifiably, people respond by saying "well yeah, but you should pay extra to support your local bike shop". If the shop needs charity to stay in business, their enterprise is not an effective use of resources and they shouldn't be in business at all. Markets work because everyone is trying to get the lowest price possible, there is no charity required.