What do you dislike the most about the game of Bingo?

Besides the fact I miss playing it with my Grandmother.... nothing. She'd ask me what I'd be doing on the weekends and from time to time I'd tell her "going out with the girls", but what she didn't know was I meant her. I'd surprise her by showing up where she'd be playing that night for "girls night" then spend the night at her house, we'd stay up all night talking and watching movies... I miss her. :-(