"Is it worth it" is an entirely subjective question. If you are looking to fill out a collection at a reasonable price, then yes, it's worth it if that's a fair market value. If you're looking to make a profit...eh. The time would have been 1999 to buy the 1999 silver set in bulk at $32/each.
For your avatar (profile picture), you can go to the "Coin Community Support" forum and make a request post including a photo of your desired avatar. I'm not sure if you have to have a minimum post count to request an avatar, but I do know you have to have a minimum post count (100) to do a signature block.
Rules are here for your reading enjoyment:
http://www.coincommunity.com/forum/rules.asp




















