This is a HCOL area perspective,
It’s always amazed me of the COL differences/rates found in CA and HI. But to get a useful comparison we’ll convert your COL to my area. The charts show a 40% difference but we’ll use 30% so that makes your $100-120K and $150K equal to $70-84K and $105k respectively. The 135 operators in my area have been paying these type wages for years and they include insurance and matching 401k.
Airline competition is more location based as a number of 135/145 operators have matched money on the maintenance side and are no longer direct competition, in general, as they were 20+ years ago. At least not in this region. So the main competition/comparison for the small shops/independent APIAs is mainly the established 135/145 ops especially if they are also competing directly for the same customers.
Where the Part 91 small shop/independents do excel on the job front is they’re local, offer 8-5 schedules, lower stress, and a more laid back clientele. Which I take it was similar to your shop? But this comes at a cost, lower wages based on what the local market and clientele will bear.
This is the one thing I’ve seen slowly disappearing over the past 15 years from the up and coming A&Ps. They have zero desire for small Part 91 ops. They would rather work 7&7, nights, in the marsh on turbine helicopters than twist a wrench on a 172. Or most would rather move away and find an opportunity other than work Part 91 local. In the last 10 years only one of the individuals I helped with their A&P went into the local Part 91 side, but that was more due to the “family effect” than anything else.
I hope it changes. But simply paying $45-$50/hr to attract warm A&P bodies without that drive leads to the “menacing and story issues” you described. Its becoming more than just money to attract the caliber of people you want working on your weekend flying machines which is unfortunate.
I grew up looking up every time an airplane or helicopter flew by. And still do it today. Now, most up and comers, even the dedicated ones, I find don’t and instead pull their phone out to see who it is or where its going on flightaware or the adsbexchange. I think there’s a moral somewhere in that story. Regardless, I've been helping people get into this profession for many years just as the old guys did for me and will continue to do so for as long as I can.