You keep missing the point. People don’t go to visit a conference center but _me_. Yes I can go to an event but when it’s done to do private stuff (going to events for themselves is quite different) it really is just a substitute.

And you’re exaggerating the cost too. Two ovens? Seriously have you seen a Polish Christmas dinner? Dozen people, dozen meals, one stove/oven combo. It’s normal stuff done by normal people with small flats.