Hmm. I find learning fun, no matter what the scope is - even Greek, which remains obscure to me. (Quick, ask me something about Greek! I'll nod wisely and stroke my chin in deep thought and then get distracted and wander elsewhere.) But you're not wrong: there's a fun discovery phase, then a "hey, does this actually work" phase, and then a "crap, I need to figure out how to MAKE it work" phase, all of which are decision points where one might choose to not bother.