Or even here at Renderosity in freestuff, many items are only available for a short time before the server (usually yahoo or something is blocked) Afterwards, the item may or may not ever be available again, and you see comments left by others saying "site blocked" or Couldn't download :( If you pass by and say "Oh, I will get it later." too many times it turns out that you never get it at all. (Or it turns up in the shop for sale!)