Not when you are getting warranty labor rates. I worked in shops, 10 years as a tech and 30+ as a service advisor/manager. Working on the same thing over and over again, would remind me of assembly line work.That makes no sense. Everyone likes money lol. Repetition is what makes you money as a dealer tech. Especially warranty work.
When I got out of the service in 1975, I went back to KC, Mo. and in 1976 Ford Motor Company assembly plant in Claycomo, Mo., offered me a job because I was a veteran. I thought about 30 minutes and said NO. Did not want to do the same thing over and over again, day after day. That is another reason why I never ever worked at a dealership. I stayed with the mom and pop shops and it was great for 40+ years. Could I have made more money at FOMOCO or a dealership, sure, but I was not entirely motivated by $. I liked fixing things that other people had a tough time with. I liked educating techs and customers. I wish I could say I was ALWAYS right, but I can't. I happen to be human.
I have talked to dealer techs and most of them do not like warranty work because of what I just said.