A majority of agency providers don't  have a full time BF or husband, if they do they aren't usually traveling with them .

Agency girls can become quite  bored, stuck  in a room day after day , faking O's from one city to another .  
 
The chances of after hours OTC partying, are much better with an agency girl , "from my perspective" .

You never know when she might just quit, and need a place to stay, until she goes Indy .