Well, no right clicks on rubberslug galleries is 
automated. Somehow, I just simply love the 
feature when no-right clicks can be applied on 
enlarged cel images, but not on thumbnails. 
*standing on the webmaster point of view*

On some extent, makes it difficult to steal cel 
images. I know that for some who loves to collect 
cel images just as much as I do. But I don't 
distribute it nor use it in the wrong ways and I 
always ask permission to allow any cel image to 
be used.

There are certainly other many ways to save a 
picture even when there's no-right clicks. All 
made possible with IE.

But I guess the best way is to watermark every 
cel. Especially it covers the whole cel and not 
just the top/bottom, left/right hand corner of 
the picture that can be easily cropped.

As to whether or not it's worth it.. Well, I 
guess it's worth when the person who planned to 
take your images doesn't know much about html 
scripts or whatever. But the best way is always 
not upload the picture. Which I find, is rather 
impossible, unless you want to remain anonymous 
and would rather be happy with your collection to 
only view by you.

There's always a give and take. There are other 
ways to prevent stealing of cel images. Like 
munging your script, etc.... plenty of ways to 
make it difficult for people who want your images 
or layouts.