Reno_Chris - 3:55 pm on Mar 22, 2010 (gmt 0)
Consider diversifying your income by writing a "how-to" book about your hobby. The book can mention and promote use of the website. I have recently done this with a self-published book and made decent money on the book and it has enhanced traffic to my website.
If there are magazines that cover your hobby, consider writing articles for them. This can also enhance your website traffic while bringing in another stream of related income.