I've put on 20,000+ miles on a mountain bikes over at least the last 10 years. Mostly commuting to and from work partly on roads, partly on bike paths and partly on trails. Trail riding whenever I can. I have the most encounters with people in cars hurrying to get into a coffee shop on my route. They are so focused on getting in that huge line to buy a $5 coffee that nothing else matters.
Here's my latest ride. Picked it up 2 weeks ago and have 200+ miles on it already. Have paid less for motorcycles and even a few cars/trucks.
[Linked Image from i.imgur.com]

A true sportsman counts his achievements in proportion to the effort involved and fairness of the sport. - S. Pope