I know I'm late to chime in Anita, but I wanted to give you my two cents. I also know that I'm a newbie, but I have nevertheless done a lot of research before I started posting.
First a caveat, I have not read all 10 pages of discussion so far, but have briefly looked over a couple random responses. I apologize if this is redundant.
I think "high class" is very different from a "good" or "expensive" provider. Meaning I think things like confidence, good convo, and high rates have nothing to do with with a provider's status as "high class".
High price might naturally accompany a high class provider, but I don't think this in itself makes someone high class. I would argue things like expensive lingerie, elegant and simple clothing choices, designer perfume, party favors (i.e., a Scotch for the client while talking), impeccable manners and etiquette, and an upscale incall location are more indicative of a high class provider than good convo.
A mere good lay and good convo has nothing to do with class. I'm met many trashy girls in college that were great in bed and fun to hang out with but the classiest thing about them was they always screamed "Ralph!" when they burped at dinner (which apparently made it less gross and okay?). At least they had the courtesy to turn their butt away from me when they wanted to fart during afterglow. (See where I'm going with this?

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