You can either pay for the convenience of having somebody else do it or you can pay with your time by inconveniently doing it yourself. It's been this way since the dawn of time.
Called a shop to get my spark plugs changed, they want $500 plus recommended fuel system cleaning for $140.
Cost $15 a plug and needs 6 plugs. You’re telling me changing spark plugs is $400 in labor? GTFOH
These places are really getting over on people today!