To Touch or Not To Touch?

image: apple.com

I'm seeking some advice here. I am finally getting around to seriously thinking about investing in an iPod Touch (I know, I'm late!), and I would appreciate advice from current iPod Touch users. Right now I'm using a (PRODUCT) RED Special Edition iPod nano that I received for Christmas a few years ago (a portion of the proceeds from each sale of one of these iPods supported AIDS research). I love it, but it has no video display screen and my brother tells me that I'm living in the Stone Age.

Touch Users: Do you like it? Do you love it? Should I upgrade?