Most of the labels I know that deal in vinyl seem almost uninterested in expanding their audience beyond the people who already do like owning vinyl.

I haven't seen any wide appeal begging people to buy the stuff. It just so happens that there are people who DO like buying it and the market exists to service that segment of the population.

Now, if you wanna say that they are interested in stopping people from acquiring their products illegally... Yeah, that's a different thing altogether. You can buy the shit or not buy it, but if they can try to stop you from stealing it (yes, that IS what it is) then why would they not?