You shouldn't force others to come to your wedding.
Emily is getting married soon, and has planned a big wedding in Hawaii, she wants both her sisters to attend even though they live in Europe.
Emily wants to have a wonderful wedding.
Emily invites her sisters, but understands when they can't afford the trip; they Skype in to the reception to say hello to everyone.
Emily nags at her sisters and her parents, until they reluctantly agree to come despite not being able to afford the trip.
Emily has a wonderful wedding, and her sisters enjoy attending digitally.
Emily has her wonderful wedding, but her sisters are now in debt and so severely jet-lagged they really don't enjoy it at all.