I'm not saying anything different.... Too many times we see DIYers wandering from one breakdown to the next, continually cursing the automotive trades or the vehicle they feel is a piece of crap because scheduled maintenance is "too costly". When the car will no longer move, there are so many things that have been affected by the original failure that any repair estimate will be sky high.
All an owner has to do for his car, is read the owners manual (I believe I have called it the worlds most expensive unread book on many occasions). Just as many times, I have tried to make people see that strange noises or behaviour and warning lights are the very few ways these machines have of alerting us that something is amiss... and neglecting prompt action is NOT going to reduce the cost.
For the original posters complaint, he appears to be trying to visit his neglect on to the service facility... I've seen it many times... I've had it happen to me, on occasion. Age and experience have given me the wisdom to see most of the opportunities of this happening...
Interestingly, there is a post on another NG..... The writer has, apparently, a concern with the release bearing in his car..... Instead of taking this opportunity to at least clean and inspect the clutch and hardware, he is intent on pulling the trans back far enough to replace the noisey bearing.... it matters not if the clutch is worn to a point near failure or not.... IF, and only IF, this guy decides to go to a shop and insists that the release bearing and only the release bearing is serviced, you can bet that it will be the shops fault that the clutch went....
Yes, there are under-qualified, under-motivated and inept techs to be found... there are also many good ones - all a consumer needs to do is look for them, follow their advice (part of my job, believe it or not, is to help customers get the biggest bang for their automotive buck..... my concern is long term cost per mile). I like making good money, I refuse to sacrifice my integrity to earn it....