Because you all come to this thread to read about tax evasion
The beauty of the 6-for-5 deal is that it would foil the tax office's one-time attempt at counting entrances from the outside. If the tax man counts 300 men go into Oase on any given day, and the receipts show only 280 entrances, Mauro has a defense that 20 men must have paid by pre-purchased Eintritte.
The European tax authorities have had hundreds of years of practice nabbing tax cheats. They've been known to engage in counting ketchup packets and napkins consumed in making cases against restaurants or buying odd items together to make a unique payment amount and later checking the receipts to see if that payment amount showed up in that day's logs.
In any case, I wonder if a side benefit of the 6-for-5 deals is that it allows the clubs to fudge a few entries every day. And surely, some of the entries get lost. So, instead of writing them off as a loss, it's more "tax efficient" to fail to show the lost passes as income.
Not that any club would ever do any such thing. Just musing out loud.
6 for 4 Special Offer at Oase
[QUOTE=HessenBub;1671765]Will be valid three weeks max.[/QUOTE]According Oase homepage the 6 for 4 special offer is still valid after around six weeks.