Planning a skiing holiday with a few female friends.
Sister in law loves skiing, however I know she doesn't have much spare cash and highly doubt she would be able to afford to come.
Is it better to:
1.) invite her (knowing she can't afford it, and she knows I know she can't afford it, IYKWIM). I think this might make her feel down about the fact she can't afford it, and I am concerned it is a bit insensitive to invite someone on a £1000 holiday when you know they are broke; or
2.) Not invite her. She's not really an integral part of the group of girls who are going, so I could get away with this, but then when she hears about the holiday she might wonder why she wasn't invited as she knows I know she loves to ski......