I agree with you Beatrice,

Nothing is more frustrating than finding a great item & it's gone or if you have something older & any add-ons for it are gone too.

 David, you'd be surprised how many requests are made for older items to be available again.

Part fo the reason I finally decided to upload here was because I didn't have to worry about my offerings being deleted over time, like 4shared where I have to login every 30 days or my things go *POOF*. :(