OK, so I did a little rough research.  Based on a 7 day, 6 night trip to Oase from the east coast of the USA:

E1 = $1.2278 as of this writing.

Air fare: $1000 round trip
Hotel (nearby to Oase): $400
Club admission (E65/day): $558
Lovely Frauleins(3 per day, 7 days): $1,289
$50/day pocket money: $350
TOTAL:   $3,597

Or, a little less than $500 per day for 7 days in paradise.  

Sign me up!