For some reason this is a very tap intensive process. Each hideout needs to be purchased at Level 1 (with a confirmation click), then upgraded one level at a time (with a confirmation for each upgrade). Plus the scrolling. To purchase 50 level 10 hideouts it takes 50 clicks X 10 upgrade clicks X 2 for each confirm = 1000 Taps. Like I said plus the scrolling. GREE please reconfigure this aspect of the game.
P.S. and while you are deleting unnessesary "confirmation buttons", please ADD a confirmation button to "finishing an upgrade, build, or expansion with gold." I bet if you spent a little time fixing this, it would cut your support tickets in half. All the while raising customer relations. Especially since you are not fond of handing out refunds for this stuff.