Interesting option.
But price must start from about at least 1 million. So there is will be four "silver" girls for your house:
- dirty beggar girl for 1 million;
- humble old chubby maid for 10 millions;
- strong sequrity girl for 100 millions;
- serious buttler girl for 1.000 millions.
Player must buy them in order or win in pachinko in any order. Maybe a godd way to introduce them - make a event with increased chances and some free rolls from missions.