Checked out your site, not bad..

As for the market you are attempting to reach, you have to be willing to do some self promotion, and hard work for getting members.

You cannot just expect to create a site, (no matter how many features it has) and have people just come in.

Word of mouth is the best way to get quality members, and creating a promotion can help in getting new vistors (ie a free trip or vacation or something) but make sure you are in compliance with your local laws on offering see more such a thing.