Well done guys,
If there would be a discussion like that around every topic, all newbies would be very happy (if they take the time to read it.)
As I see it now, for a starter, an expansion of the arena is not a good option, financially, it should be considered lateron.
Nevertheless, I already gave the assignment to install 3 luxury boxes. Just to have them (I need my proper seat in the stadium).
In a next move, beginning of May, I will adapt the ticket prices according to the demand of the seats, untill I'm almost at the maximum.
The large advantage is that, theoretically, you can adjust your stadium one seat at the time, maybe it's good, when having financial reserve, to expand your stadium a little after each home game...