I’m having issues, site-wide, with people hot-linking to my images. Since I don’t like that (it messes with my stats and I’m tired of seeking out the offenders) I’ve rigged the page so folks can no longer do such a thing. I suppose more savvy web users will still be able to do it, but those folks know how to save a picture to their own server.
The only thing I dislike about disabling right-click is that I like to open links in new tabs in Firefox, and that doesn’t work w/o right-click.