lol. Many different types of men, of all financial backgrounds, hire escorts. They have a wide variety of preferences, fetishes, and needs. One "rich" man may show up for an hour appointment and stay for only five minutes. Another may request an all night visit, complete with a night out on the town or a business function. Many times a man will choose an hour with a woman over his rent payment. Those are the ones that tend to demand a lot.
Mark my words, Casey was working as an escort. She didn't need to be well versed or well educated, she didn't need to be drop dead gorgeous, and she didn't need to be anything but willing.
Could she make a living doing this? Well, let's suppose she was an average internet escort. At $300/hr., working just 3 hours a day, she was taking home at least $900 a day, tax free. That's not including any tips or "bonuses" she talked the client into. So let's just average it out and say she was taking $1150 home every day that she worked. Could you live on $1150 a week?? And that's working just three hours a week.
As far as stealing from her friends, people get greedy. The money is spent just as easily as it is made. If it's there and it's easy, they're taking it. Escorts are known to be swindlers.
The web searches she did on all the escort sites, she was scoping out the competition, looking at their rates, their reviews, their pictures, getting tips. The California searches were checking out what she could expect out there, seeing what girls out there look like and what they are making. The sex sites she trolled, she was looking for business. I really believe a lot of sites she visited are still being withheld. I would bet almost anything that Craigslist and ads posted on local escort sites will come out eventually.
I am a former escort. The two phones she had, her "going to work" during the day, disappearing for periods of time, and being online frequently immediately made me think she was escorting.