Lots of text... I'm very busy right now so I couldn't read them all fully, but I think the thing what differentiates reps and gens is not only the movement, it's everything.
But that "everything" is something that you can only appreciate when you become a real "WIS". Actually I hate that abbreviation, because it sounds so snobbish.
Bracelet and SEL details, how the crown winds in/out, clasp smoothness, dial glossiness, etc. Reps can never make those things right, but these are very hardcore details. If you wanted to explain those to an outsider, he would never understand.
I don't know where's the limit between sanity and insanity, but being a watch fanatic moves you close to those borders. For someone "normal" that kind of details would never make any sense.
People who say "Rolex is a nice $500 watch" forget that they're actually very high quality watches, and they have inhouse movements. Rolex is a dirt cheap poor man's watch compared to Breguet, Zenith, Patek and JLC. How many other brands offer 100% inhouse movements for the same price? (Seiko doesn't count as it's competing in totally different league.)