Re: 1999 urban decay substitute[ Edited ]
You can still get the 1999 on Amazon...if you love it, stock up now.
And like desertbr4t mentioned, rockstar is a nice purple substitute.
here are the descriptions of each from temptalia (they are pretty similar)
1999 is a red-berry purple with a slight metallic sheen.
Rockstar is a dark burgundy-purple with a red undertone and slight reddish sheen