It would be relative to where I might want to permanently relocate, for the practicality aspect. Took some informal courses in high school, Italian (not so good), Russian (sounds pretty brutal, didn't learn much), Cherokee (had a hard time deciphering the alphabet), and Spanish (fairly fluent still, comes in handy here in Meh hee co del Norte). Would probably just work on my Spanish, but would consider something Middle Eastern or Asian.