Totally worth it. I've been getting the bonus box every day/and a half at most. Since the Halloween update started I went from 9 donuts to 41! :shock:
10 free donuts from the Trivia question, like 9 from the bonuses, 3 for "leveling up" and some from random tapping on ghosts or hauting houses/unhaunting my own buildings.
Although I have to say, at least 2 donuts are a complete mystery and I have no clue where they came from....
Good times for donuts overall. I think I'm going to get the Red-evil shop (forgot the name of it and don't have the game open at the moment ha) for 45 donuts when I reach that amount, always coveted it .... 8)