But at all levels of organised sport, you're going to get a large and probably growing contingent amongst the owners, directors, sponsors, benefactors etc who do it to help fulfil their own ego and vanity, and/or have vested, personal interests as their main motivation such as the promotion of their own business interests. Being able to brag at their golf club on on expensive holidays about how much money they're putting into whatever sport club as way of saying "look how rich i am, aren't I wonderful".
I don't know if these come into the category of "hobbyists" (or vice-versa). Is it actually possible to have these kind on involvements whilst being entirely altruistic and its probably impossible to differentiate - motivation for involvement differing vastly.
So in terms of the owners of UK speedway clubs, is it more a case of those who behave primarily with a narrow-focus, versus those who are more "bigger picture" oriented, irrespective of whether they could be classified as "hobbyists" or "business focussed", or whatever?