Who knows and I suspect she might think about from time to time. I imagine most porn stars think about what would have happened if they had mainstream success. She certainly could have been a Playmate back in the 1980s. At the time Playmates usually continued with bikini extra work on TV or Drive-In T&A flicks where she could have made decent money. (Probably better than adult movies at the time. Playboy had the models contracted not to perform nudity without Playboy's consent.) However, most Playmates or old Penthouse Pets did not have maintstream success either. On the other hand, her porn star experience and later movies made a much bigger name for herself so in the long run as she was probably made a lot more money.
However, from reading her autobiography she was not ambitious towards the industry and only got involved because she was broke. For Playboy (esp. in the 1980s) you had to do special photo shoots in which the model paid for and wait for photo auditions.

Simple answer..see Teri Weigel..posed for playboy was a centerfold then did porn
"Shotgun! Anal!"

Yeah. She could easily be a Playmate. One of the best things Christy did though, was to not deface herself with tattoos and piercings like a lot of wannabes nowadays.