Welcome to the Quilting Board!
I totally believe what you say about the repairmen. In IT (where I work during the "day"), one of the major certifications teaches people to replace the mainboard and reinstall windows. No troubleshooting. Same exact thing.
It's what's fast, makes them the most money, and is the most idiot proof. That way, "even a monkey" can be trained to do it. Not a lot of craftsmen in any industry anymore, I've noticed. It's unfortunate.
Tammi - I've found many baby steps tend to get you further than a huge leap in followed by a huge leap out - http://www.archaicarcane.com
Singer 411G, 301A, (2) 221, 222k, 15-90 Centennial, 15-90 RAF decal, Spartan, 27, VS2, 28 hc, 128 knee bar, 201-2, 201K HC, 31-15, Pfaff 130-6, Frister and Rossman TS, Gritzner Fiddlebase TS, Spierpon Queen (Jones) VS. Non-Vintage - Pfaff 6122, Kenmore (Janome) 385.81595 serger, Janome MC350E, 2013 APQS Lucey