Since the dawn of the combustion engine, people have been relying on mechanics to keep their rides going. Until quite recently, one had to drive his car / motorbike to a garage and hope not to be ripped. Wether it would be an official dealership or a scruffy 'all makes' workshop, one could only hope for a 'good deal'.
A friend of mine had a couple of 'minor' annoyances with his car: the tailgate would drop on his head while unloading, and in the car there was this never-ending high-pitch squeel, that drove him berzerk. He popped by at the dealer's workshop and they told him it would cost him over 200 Euros to fix the problem: two new gas-struts and some sniffer part of the ACC, plus an hour or so to replace the parts, plus VAT...
He asked me if I could help him out, so paid a visit to a forum dedicated to the car make and learned that the squeel could be fixed by removing a coverplate and then squish in some WD40. On the same forum I found an address for the struts.
I got the struts for 38 Euros (including postage from Holland), drove over with my can of WD40 and fixed both problems in a few minutes: the struts just clip on, only a small screwdriver needed to remove. and a telescopic broom came in handy to keep the tailgate open...
Thanks to the internet and dedicated forums, my pall saved a lot of money and I got a free meal.