I figure some of them are in it for the money. But some already enjoyed it long before, such as Vixen and Yasmin. Then Fantazi went into it for the money but found it very enjoyable.
well, whenever money is involved it's pretty safe to say it's also the main driving force... then again, there is also the "if you love doing something, don't do it for free." saying so who really knows...
"professional production" clearly implies money making is the goal, like any business.