I guess the set collects Kiss' "Alive" albums I, II, and III, which are all available seperately on iTunes for $10 each. It does seem strange that they couldn't come up with three different sets for their three live albums... but when you only have a handful of recognizable songs, you're pretty much stuck playing them at every concert.
Yes, this is a four-disc set of from four separate live gigs...1975, 1977, 1993, and 1999. The first three have been available for a long time now...their legendary Alive!, Alive II, and Alive III. The fourth was supposed to be released as Alive IV, but was instead folded into this release.
It appears that the songs are still authorized and working this morning. CC still shows $1.50 (fingers crossed). iTunes music store now lists the album at $39.96.
EDIT: Sorry for the repeat info, my browser pulled up a cached version.