It is true that for renting gammas will be burned. Majority will came from tourist without knowing anything about crypto and will spent euros, than xaurum holders can send xaurums and for rent they will be exchanged on xaur/xgm pair. Or somebody can buy gammas today and goes for the same amount on vacation not once but three or more times.
All additional offer cars, food, diving, vine cellar.... is paid in eur ( mint), xaurums, or maybe even gamas (xaur/xgm) in any way that you can come to xaurums eventually and will make xaurum more active and gamas more valuable.
I went one day to look at the villa that is already in use and is realy worth the money. Pool with current, wellness pool for two, garage with table tennis and darts, big grill behind the house, amazing view and so on. Next summer i am there for sure.