How many times do you invite someone to a recurring event that is a schedule conflict for that person before it is considered annoying? And then when you stop inviting them, but others are talking about it, is that rude? It's one of those fine line things. You want to invite the person because you don't want them to feel like you don't want them there, but they never come so why keep extending yourself? You feel me? I mean if that person came every once in awhile I could see maintaining the invitation, but if they consistently decline isnt' it time to move on?