Expectations

There's a dancer whom I've seen at clubs in Vegas for over 10 years. She is always complimentary to me if I am sitting with a girl and without fail mentions the $5.00 I always tip her as she does her stage routine (an actual routine from a kickass dancer). I've never gotten a dance from her sumpin we are both keenly aware of. Yesterday I tipped her a $20 while on stage and broached the idea of getting a dance. She said she doesn't do chair dances (I've never seen her do one so I took it as truth) and we'd hafta go to a couch across the club (same price). I cooled on the idea and when she asked why I have never gotten a dance I said I was afraid you'd never live up to my expectations of what it'd be like (I would want sultriness, which is how her stage routine is, set to specific music usually chill or D Mode, Smiths, Simple Minds but I'd be worried that she'd be distant towards me throughout. She doesn't have any breasts whatsoever and has a swimmers build. And the conversation we shared since it was juss her and me went absolutely nowhere besides her commenting on goings-on at the club which were fun to listen to. I would be content to juss tip her on stage and leave it at that. Should I eventually get a dance from her for the halibut?