It very much depends on you personally. Your goals, your interests, your spirituality, your belief in what lucid dreaming is, the amount of time/dedication you put into it (or luck you have), your creativity when it comes to controlling the dreams, how creative your dreams are to begin with, etc. etc. etc.

Have you ever had a lucid dream?

Personally it's made me much more relaxed and confident in my everyday life, and also let me zoom around in the air or play I've got superpowers, which is very fun. So having a good lucid dream is like having an awesome day at an amusement park or something, I always wake up happy from them and it usually keeps me smiling for an entire day, if not longer. I also am pretty proud of myself for having taught myself to lucid dream, it's nice to have a hobby (some people wouldn't see it as a hobby, but I do), and it's also good to have a skill to be proud of Not to mention I still have not gotten over the complete mind-boggling sensation of "I just did all of that in my head!"

Some people use lucid dreaming for other things. Exploring their creativity and coming up with music and art, or designing things (Tesla was supposed to have designed and built many of his machines in his lucid dreams, or so I've heard (not sure how true that is), but if it's true I'm sure it changed his life!). You could potentially use it to battle a crippling phobia and drastically increase your quality of life. You could use it to 'visit' the memory of someone who has died or who you can no longer see again, and come to closure or just 'visit' someone you miss a lot. The possibilities are, literally, infinite so it really just depends on you and what you want out of your own dreams. No one can really tell you (though some people love to try).