I agree. That is true, if they are hot then they definitely know and will use it to their advantage. However, it doesn't determine quality of service.
Why are you so fixated in proving LLP is wrong? All the OP asked was for "pretty, skinny model type WGs with small tits" and LLP said you had to look at a higher price point
which you agreed on.
LLP didn't say that above £200 it was exclusively this type of girl. You also get pretty glamour model types with huge fake tits, as well as glam BBWs who some punters think are hot.
Furthermore, neither OP nor LLP brought in the concept of service level - you did.