Definitely dances you can use in social settings are fun, but why not learn a variety of dances?
I kind of fell into ballroom by mistake. For a few years I had been taking salsa and samba because they were the only dances I wanted to learn socially.
When I moved, the only dance studio near me was a chain that required you learn 6 dances at once (waltz, tango, foxtrot, rumba, swing, chacha). At first I balked at the idea, but now am obsessed with ballroom.
Of course I still go to the salsa clubs, but now I also go regularly to "socials" and ballroom dancing clubs.
Experiment! See what you like! Have fun with it!