I was having this debate with a friend of mine last night about how many invitations to purchase for my wedding next November. I want to purchase 25, because I'm only inviting 50 people (I'll be having a destination wedding and I'd be shocked if 50 people showed up). I told her the reason behind only having 25 invites is you are asking people per-couple, not per-person. She said I should buy 50 invites because I'm inviting 50 people. I'm not sure which is correct, but I don't want to upset anyone by not sending them an invitation.