The number of cards each player has doesn't bother me as much as the changing rules. For instance, if the caller says we'll be going for "regular BINGO and 4 corners" and after each players get one of those patterns and I remove the markers from my cards, then the caller says "Now keep going and we'll play for cover-all."
Then there's the woman that attends and plays, but if she wins she says "I really don't want any of those prizes." Makes me ask the question "Why does she even play if she doesn't want anything?" That the same person that left her Christmas grab bag draw on the table when she departed the meeting last December.