My Relationship with the Ampersand

Hey fellow poets, I have a question for you all on the usage of the ampersand (&) in poetry. I like the thing well enough in handwriting, because it’s fun to make those funny flowing loops. When typing, however, my soul becomes conflicted. So my question is this: why use the ampersand and not use the word “and”? For my last poem, I caught myself just about to use it before I started questioning it and my whole poetic life. What is its purpose beyond abbreviation — or is abbreviation the ampersand’s only purpose? Does the symbol exist to create some aesthetic variety on the page? I’ve noticed many of you using it, so what’s your personal reasoning for “&” over “and” or vice versa?