why a dealer service shop would lose my trust.
R&D on a pressure switch? Are you kidding me? Are you just making crap up at this point to believe it makes you sound smart? R&D on pressure switches was completed 50 years ago, not to mention the fact that Honda itself is not in the pressure switch business. Like every other car manufacturer out there they shop around for the best price at the quality level they are comfortable with. Honda is paying $10 at best for that pressure switch. I've been in the manufacturing world. You can't bullyewt me with crap about R&D on a pressure switch.
Go ahead. Next tell me Honda makes their own oil and air filters. You think they make their own brake pads and rotors, too? I'm sure lots of R&D goes into those parts, but they don't get marked up 1000%.
$500 to do a 15 minute job to replace a $30 part is a complete and total ripoff. If I can't trust a dealer service shop to not rip me off on the simplest of jobs, they won't have my trust on the more complex jobs, either. $200 would have been a reasonable price. That's $75 for the part (giving the dealer a $35 profit and Honda a $30 profit), $75 for the 15 minutes of "hard" labor loosening and tightening an o-ring sealed part, and $50 for the coffee I don't drink and chairs I don't sit in because I'm not some idiot that's just gonna sit at a dealership while they take 2 hours to pull my vehicle back to do the 15 minutes worth of work.