Been meaning to get Aliens. Happy I didn't buy it first week because, as it turns out, it wasn't even on sale. Regular price of US$20 even in the first week of release. I was at Sam's Club (wholesale outlet owned by Wal-Mart - which does not sell walls) the other day and they had the Quadrilogy for US$67. Not bad, but I still don't know if I want to spend it.