Give your list content that they can come to know as good info but always leave them with an offer. If they respect your advice (and that is what usually compells them to continue to open your emails) then they will want to know about any products and services that you might have available.

The fact that you offer accessories is good because that is a captured buyer but you should expand your potential market by offering other items for that demographic. If these are 17-35 year old males, man that opens a lot of product potential.

Make a list of things 17-35 year old males would like, like to do or think about. There is your offerings now set up your affiliations with those products or services and hammer it out to your list with the valuable content you are already offering.

Just a little comment from an old marketer

Bob Kimsey
The Vhiper Network