In fact, it is very advantageous for a girl to appear in pornography and work as an escort. Even if she appears only in solo or lez, a porn girl has extraordinarily high escort fees compared to others. Thus porn career endorses escort career for sure. Probably the case for Sandra Russo, she is now 33, no more in demand in the porn biz and she seems to be forced to a considerable discount.
Also you don't have to be so much concerned about sanitary issues like a syphillis outbreak when you do your escort work for you are not usually expected to perform even OWO. When you are a porn star and get extra-charged for OWO, the bare dick you'll suck on will not be less wealthier than the one of a 60 yo American business tycoon or a mighty Arab sheikh. Well, it's a girl's world!