haha, well... when he gets back from his holiday, given after his hard 2 months of work... all the people that have waited for him to come back will have a order to put in... it looks like he may be busy when he gets back! 
Maybe that's his ploy
It can also work in reverse as well.
It can but Greg has a great reputation not only in Australia but overseas and has a loyal following so I reckon 99% of customers will wait for his return.
Peter
i agree he has a loyal following but it is still the strangest buisness practice i have ever seen,anyway good luck to him if he can get away with it.
