The irony. At least one of my lbs owners does just that!
Of course, driving a flash car does not equal ripping people off. I do think there is some wiggle room in this debate. Perhaps the real issue is the fixed pricing.
I used to be in the trade, thankfully a short lived excursion, and if a job turned out to be easy/quick I would lob a bit off the general price.
That approach has served me well in every business I have been involved in. Take fencing, which we are in the middle of a long run at the moment. As we are tooled up and at it, we have taken on the job for a few neighbours and as a result are making some money as well as saving a lot of money. It is generally a fast job, but when you hire professionals they will normally cost on a fixed basis regardless of how quickly they can get it done, always looking towards their bottom line. We have the option, working on a small scale and on a personal basis, to treat our 'customers' much more fairly. We will get the call when it comes to any further work thanks to being more flexible.
You will find small bike shops tend to give you a good price the more work you throw them. That works with most small businesses. I do think it is steep to be taking £30+ as a fixed price starting point though.
At that price I would be looking for a mate who is tooled up and familiar with my brakes to do it for a few beers.
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