Here in St Louis I think you would be hard pressed to find anyone that wouldn't charge $100/hr these days for in home repair. You could probably add travel cost to that, too. That is if you could even find someone willing to do it.

Last year someone was looking for a repair on a Bally home model Fireball. The guy told me he looked for 9 months to find anyone to repair the game and no one would even come out to take a look at it, and he would gladly have paid them whatever rate they wanted. My point is that this type of service is necessary and should command the same type of rate as someone fixing an appliance or other similar product.