When you think about it $50 an hour is not bad at all neither is 250 they have to have all the supplies, they have to deal with problems with the install might have, they have to pay for the supplies and employees and space, as much as we all like getting labour for next too nothing, you can't do that if you want any kind of support afterwards, etc. In some ways I'd like to offer cheap services for things like timing belt replacements, and various other things that are in some kind of demand but I do not want to charge too little because what if I mess up an install, or more likely, something goes wrong in the car, 10K kms from now the timing belt jumps or something. People are going to come back, and want their money back, and/or what what it costs to fix it all, which is a lot more than the money you make on even a few installs, so all in all it's not worth it.