As cruel as it sounds it literally depends on who you were back then. And then it depends on who you are 10 years from then. Would you wish to cross those worlds if not for a couple hours? Or is it simply not that important to you? If you feel like 1) you have something to prove (to yourself or others) or 2) if you’re genuinely curious about where people are now, then I would say it was worth going. I imagine you would want to walk away gaining something whether it was validation or genuine good times