Talk:Profitability/@comment-5047704-20120427192535/@comment-4935290-20120501181624

I calculated that advantage per hour for several buildings (the buildings i have, had or thought about having). It can varies from less than $ 10/hour (Café) to more than $ 500/hour (Club Flipper and Burger Restaurant) or even more than $ 700/hour (Hotel Atrium and European Country House). In the case of Hotel Sea Breeze it's about $ 165/hour. On the other hand the most profitable regular building is Billiards, cost € 65, profitability $ 5,276/hour. For example, the Waterslide (the most used building in the islands i saw) would gain around $ 68/hour with an Oracle, so you would need 78 Waterslide to get same gain/hour than 1 Billiard and the Billiard is cheaper. So generally speaking, the Oracle is profitable in two cases:

1. Some very high value islands, full of high level buildinds like Hotel Lux, Club Flipper, Hotel Atrium and so on. And future buildings should make the Oracle even more profitable. But usually in this case income is no longer a concern, because those buildings are highly profitable even without Oracles and there isn't much more to do with your money.

2. Island full of quick collection buildings like Burger Restaurant, Cottage and European Country House. Such island can be bad for income, specially if you use 70% collections without Oracles as i added above, but if you play continously at least a couple of hours a day or play many times a day, it's the best way to gain XP. And XP is a lot harder to get than $ when the game advances, because high level buildings have long collection times and great profitability but they generate very low XP/hour.