As I rebuild my collection I was delighted to have encountered this at the local used bookshop. Paid 4.00. Its not mint...but I'm allright with that (I'm not mint either). I'm sure this is no rarity, but it was a damned fun and quick read...and of course the illustrations were a delight as well.
Now you need to pick up Bring Me Your Love. It's in the same format as There's No Business and is also illustrated by Crumb. The two titles make for a nice set.