I have an alt at 50 I never play. Back when I played a midlander, I wanted to try a miqo'te. Finished the 2.0 story on her but as more patches came out I never got around to doing any of it on her, also I played BLM on her and realised that job was boring as hell (at least at 50). Then au ra came out and my need to play a character with a tail was satisfied on my main.

Nowadays I really just use her to get and save some extra event furnishings I might want in the future that I dont have the space to store on my main