I've ridden approximately 130K road miles over 20 years, and I've only had to change flats and turn a few allen bolts. Never had to true a wheel, adjust a derailleur (I don't count turning that hand adjustment thing on the rear cable tension, that's usually all it takes) or anything that crazy. I can change tubulars on the road, and I have used $ bills as shims in side tire casings that were torn or ripped badly.

OK, who's impressed?