Thing is with marketing a niche product to a willing market is that you really don’t have to try too hard.
You are not pushing some unnecessary consumerist dream down their throats, nor suggesting a lifestyle change; just putting a willing customer in touch with a suitable supplier.
This is where social media comes into its own, if you create the right sort of Facebook/ Twitter/ YouTube etc page which carries a true source of information about a shared sphere of interest you can be sure that the majority of people who follow, share, befriend, fan your social media pages will be almost willing customers.
Hence, create your social media pages, lovingly add/ drip as unique and interesting content as you can on a regular basis and you will soon find that you have followers and, better still, conversions.