I'm an electrical contractor. I can work for one hour to pay and not have to do the hard work myself.
I'm in A/C, guess the rates charged & salary are equally...
But it ain't about costs or being affordable, it's about peace of mind, cause I'm checking on a lot more while in there...
head-bearings, forks, wheel-bearings & seals, hub dampers & bushings, drive spline, brake pads & calipers, swing-arm bearings, shock mounts, gear linkage and brake pedal pivot, treating the exhaust clamps with copper-spray, brake and clutch lever, visual inspection for leaks, discoloration or any unusual sounds...
That every MC shop here is under some gag contract, hence simply
refuses to order Bridgestone (G547/548) or any BelRay consumables just adds to the dilemma...
The numberless culprits I've encountered on "dealer serviced" motorcycles just enforce OCD and trust issues... (and I'm not referring to an occasional mixed up fairing bolt...

)
Besides that it ain't hard work for me, the (peacefull, calm) times in the hangar are relaxing and help to decompress...
And I just won't start any long tour (like Scotland or Norway) with half worn tires...
I only keep a used set around in case of a puncture mid/end season...