I think you're missing the whole point of "The Garage" if the idea is to just take the car to the shop for even the most minor of repairs.
http://www.youtube.com/watch?v=XlGu9Hs5UsI
Even little kids can do brake jobs. Both of my kids could change the brakes on a car before they had their driver's permits. I couldn't even guess at how many thousands of dollars I've saved by doing my own work for simple repairs. Heck, as a parent, it was easy to say, "hey Michael, go change your mom's brake pads." I just put in a new starter & alternator in my wife's car today. That alone saved me a few hundred (both were easy. Getting all the parts out of the way to get to the starter was the hard part. Whoever designed a vehicle such that you could ONLY use an open ended wrench - not enough clearance for a socket or even a box ended wrench - to remove certain parts, should be smacked with a wet trout.
I've had things go wrong - and those things would have gone wrong for a mechanic as well. I had a leaky brake cylinder. Attempting to replace it resulted in braking part of the brake line. The outcome would have been exactly the same for a mechanic, and instead of the $25 for the part, it would have been $45 for the part, and charged an extra hour for labor.
Big Caesar sums up best why you do your own brakes:
http://www.youtube.com/watch?v=SMw8R_6RsXA (everyone ought to watch the first 17 seconds & compare/contrast it with the other link above.)