You see, this is how she makes money now...
Not a high end callgirl.
http://www.hollywoodreporter.com/live-feed/stars-getting-rich-fan-conventions-933062
She only needs to do a show a month, and she's probably making more than what she could make doing guest appearances.
It's funny because her previous costar Jewel Staite has said so much: being an actress isn't worth it anymore. She just does one of these conventions a month. Walks away with a garbage bag full of cash, which she doesn't have to report to the IRS. (Just kidding!)