I HATED the book study! I hated having to go to someone's home; I always begged the elders to assign me to the group that meets at the hall.
I had a book study at my house for awhile. People's kids would break stuff, and a few days after each meeting I'd notice little things missing. I finally told the elders I did not want to have it any more.
At least at the hall you can form your own clicks and sit with whoever you want. With the book study arrangement, you were assigned to a group. Your friends could be in other groups while you were stuck with idiots you didn't like.
And as far as goodie night....the book study was during the week. People have to get up for work and school the next day. Why sit around and chat with people who do not invite you to do stuff with them on Friday or Saturday night?