Some people need to come around to the fact that they should need and use miles.
I usually get this as an aswer to the miles& points sign up thing when talking to friends who are not in the know:
"oh yeah? Cool. I gotta do that some day"
They ask you like 3 months later about it again and you have to go find the old email you already excitingly sent them once before but if you use Yahoo or Hotmail, you cannot like sending them something with >>>>> all of the text of it!