We've talked about the college coed And but I've chatted with several ladies that are "professional" SBs.
They are more mature 40+. Very attractive and seem pretty polished. In chatting with them they come here every year and do for the really wealthy 70+men. And they All seem to have a very high opinion of themselves and look down at the young ladies that do per meet.  
I think there is more of that here and probably palm beach and Naples Florida.

when I met her.  She's all of 20 now. She is a professional SB in the sense that it's her only source of income and her only means of support.  But she couldn't be more different from the high priced women you have described!  She is a modern day hippie flower child, lives in a small mountain community in a crummy log cabin with only a wood stove as a source of heat in the long snowy winters. She likes to paint and do pottery and write poetry and raise vegetables and hang out with all the other strange local characters.  On the plus side, she's very beautiful and a total sexual dynamo with zero inhibitions and zero gag reflex.  Since she needs very little money to support her modest lifestyle she's able to survive on the gentlemen who come to visit her area for the skiing in winter and other tourism the area supports.  She has no competition in her market.  She lives a 2 hour drive from me, but I still visit her from time to time.

And I'm not much of a skier so I'd visit her during the cheap months.

I’m in a mountain community with a ski resort....if only the nice girl with hairy pits and smells like a knap sack lives near me!

My hippie friend cleans up pretty good, haha!  And she knows which side of the bread is buttered, so she's always fresh as a daisy when I visit her!

The one I've met is a total sweetheart, she's done Brazzers films, but  only a couple, she has a NASTY twitter page where she sells her films and does custom videos, and she's on SA, but not yet on pee four, although she wants to be.

She's an interesting example of how all these different sex worker modalities, from cam girl, to SB, to escort, to porn star, to to prostitute, to street walker, are blurring lines and categories that used to be more distinct. It doesn't hurt that she's a sweetheart, a delightful woman in public, a total slut in private, and looks like a young, petite Halley Berry.

I also know of at least a few women who use SA as a version of a touring listing system analogous to pee four. The do travel, and their SA constantly updates for their current location, and my correspondence with them leaves NO doubt as to what they're doing. Unfortunately, since they travel a lot, I've missed them all when they've been nearby.

My first regular SB and her roommate were both professional SB’s (fresh out of HS without even a menial job). They are both well-reviewed escorts now. They were great in bed at such a young age so I knew it was just a matter of time before they became escorts.

These are mature SBs...