I've said it before, and I'll say it again.... she's married to a millionaire, she does not need the money from modelling/porn, she has a wealthy husband (a lawyer) so her porn career is what she is interested in, doing but by not being over-exposed i.e. not having weekly shoots (over 50 scenes a year) then she has more interest whenever she does film a new scene or movie
many porn girls are working on a daily or weekly basis, but those same girls are not married to millionaires so effectively "need" their weekly gigs in order to pay their bills. Samantha is not in the same position in her personal life, so she has the capability to decide when to work, and when to spend time at home resting or out with her friends and family.... and she knows that when she does film a new scene, her fans will still watch as they've waited for ______ months/years to see her
this is a case of a professional working within a business - if the money is right, she will continue to work when she wants to
Most girls take a long break from the industry because they don't want to burned out fast