There are definitely nerdy aspects to skaters, despite most skaters being non-argumentative and easy going about those aspects.
A lot of skaters are very particular about their wheelbase, deck width, wheel size/durometer, tail/nose style.
Skaters are also obsessed with archival of magazines and video parts, leading to some nerdy discussions of 30 year old events that the mainstream would consider trivial.
The accessibility of skateboarding puts it leagues ahead of an expensive sport possible only in certain locations at certain times of year.