I have a number of alts that I don't play any more, for various reasons.

The first was during the open beta when I was locked out of Mirasa for... pretty much the entire thing. The NA servers were inaccessable to me so I made an alt on Valefor.

Then I made an alt for the same reason frequently listed here. I wanted to try a different aesthetic, without tossing away my current character.

Most recently, my brother started playing, but joined a different server his friends were on. So I made an Alt to play with him.