What Is The Intrigue Of Gutter Pairs?

I was looking on hipstamp, ebay and Amazon for Farley Follies stamp panes, specifically Scott #766..767..768..769..769.
When doing a search, I would get a couple of intact sheets, but there were tons of cross gutter pairs and other types of gutter pairs.

What is so intriguing about gutter pair stamps?
I don't get it, they are mint and cut from an original sheet.
I think I need to be schooled about this.

JoanneG

Gutter pairs are just another way of collecting these. Here is a great post about these stamps: https://goscf.com/t/54752&whichpage=4


Peter