For sure it's worth keep learning if you love music. The only reason of self-satisfaction should be enough but definetely the blockchain adds a new ítem to the list.
The fact that you can create your own sounds as a musical expression of your feelings should be a "must" in that list of reasons to keep on playing and learning.
I would add sharing time with other musicians to only get a nice time is a great heavy reason in my humble opinión.
Keep on playing and learning!
My best wishes, cheers.