I wouldn't waste my time with it. I wasn't very popular in High School and only had a handful of people that I really talked to and only one of them was at the 10 year reunion that I attended. As for everyone else there, not much had changed since High School. Same cliques all chatting it up at their own tables and my wife and I sat and talked to the same guy all evening, and, as in High School, I wasn't cool enough for hardly anyone to pass the time of day with. Add to that the fact that I have been ignored more than once on myspace and facebook when trying to reconnect with different classmates, so apparently what my classmates think of me would in no way be worth shaving off a day from my WDW vacation just to have them snub me all evening. :ROFLOL:
Of course, that's my advice based on MY experiences. But if you were the big stud football star or the popular cheerleader (sorry I can't remember from your post if you are male or female) and have lots of friends that you want to reconnect with, then it may be worth it. But if, as in my case, you spent your high school years on the outside looking in, then to heck with them guys, and just enjoy every day of your vacation.