Is it useful to try to understand something that might be true under some conditions that might kinda indicate a larger Truth that might never be known but perhaps just by trying to get there we can come to a greater understanding of where we really are? Just because it's good to try to understand things and to know where we really are? I mean, no payoff, really. Ever. Is that useful?
I'm guessing anyone who would condition their appreciation of philosophy based on some determination of usefulness would probably say "no".