I use Google Analytics to work out how many people use this site and what they look at the most. This has several benefits:
It gives me a warm fuzzy feeling that all this work and money has been worthwhile
It lets me know what people find interesting, and that means I can write more of that stuff
It means the site will still be here next year when my hosting comes up for renewal
If you find this site useful then please leave Google analytics enabled. It's the only way I have of knowing if it's worth continuing with the site.