I think I've scared some of you. I am sorry dear Tammym! In Malaysia it is usual to have a big reception. Actually 500 is MY guest count (my primary, high school, college friends, neighbors, family members and relatives whom I know really well). MY PARENTS guest count is another story...it's suffice to say that it can reach ~900 people. From FI's side, there will be around 15 guests. We haven't send out the invitation yet , but we think many of his guests will not make it due to expensive airfare.
Maybe we can throw another casual reception once we are home.