Conversation so far:
What is On the Sunday of Life by Porcupine Tree?
On the Sunday of Life is the debut album of English progressive rock band Porcupine Tree.
Did the Porcupine Tree album On the Sunday of Life do well?
A small run of 1000 copies of Porcupine Tree's On the Sunday of Life, in a deluxe gatefold sleeve, were released in early 1992. The album, over time, eventually sold in excess of 20,000 copies.
Was Porcupine Tree's album On the Sunday of Life rereleased?
Porcupine Trees album On the Sunday of Life was released in May 1992.
Who else played on the Porcupine Tree album On the Sunday of Life album?

Question: Is it collectable?
Self-contained rewrite: Is the Porcupine album On the Sunday of Life a collectible?