Well done, Bic. That's as good a tirade as I've read anywhere recently. I'm amused to find that I fit somewhere in between the two polar ends of your description: guys that actually like bikes and know how to do stuff, and the nouveau riche bolt-on set. I'm one of the missing 1290 crowd, though I have a GT, so in KTM land, I'm not sure if that really counts. To the Super Duke purists, I seem to have chosen something like the two-wheeled version of a minivan. I'm an ex-Yamaha and H.D. mechanic, but that was long in the past. ( As a Yamaha mechanic, at my first Harley tech school, the instructor said, " Gentowmen, (he was a Brit) the first thing you must realise about a Harley-Davidson motorcycow is that it is a problem motorcycow". Those were the transition years from AMC to Willy G's group. It wasn't pretty.
Still, I've retained some mechanical skills and did my own service on the 749S that I traded in on the GT and the R-spec tapered collet valves of the S model was some of the more challenging mechanicking I've done. Don't pooh-pooh it 'till you've done it Once the warranty is up, I'll do my own service. I fit the age bracket you mention, though perhaps not the income bracket (hence the owner servicing). I bought the GT because I wanted a bike that would give me the riding thrills of the 749 while still being able to take my wife along for the ride. She is every rider's dream passenger, having ridden with me in Italy (Rome to Sicily on a Multistrada), where she learned she likes to ride fast, Chile and Argentina on a GS (meh) and the Pyrenees on a 2015 MTS- brilliant!). The GT might not be every one's "cuppa", but it suits my needs perfectly. I've ridden in the rain, but I prefer not to, though on longer trips, that's just part of the deal and I don't mind it then. I don't ride in the winter here in B.C. because they spray this liquid-motorcycle-cancer de-icer on the roads and, no, I don't want to turn my nice new bike into a rat bike just yet. But that's just me being old and fuss-budgety. There are people who ride year-round here on the Left Coast.
I fabricated my own air horn brackets...