If I can't afford it, I eat KD until I can (metaphorically speaking) or I stay away. I also don't bitch because I don't own a ferrari. I control my own destiny.
If a lady charges less than the experience warrants, if I can afford it, I tip hugely. But, it's hard to tip big when it's a $500+ experience, so I usually try to bring wine, fruit, cheese-and-crackers or ask her to lunch.
Unless it's a disaster, and there are certain turn-offs that make it really hard for me to be aroused (e.g. I can't help being severely turned off by the smell of smoke in hair), I usually behave like I really want to be there - because I do. Pretty lady, naked, smiling - man! that's heaven!! And in my opinion, attitude is the big part of the experience.
I've had a few comments from ladies that some guys are so non-communicative that it is frustrating, and the guy goes online and says that the experience sucked. I'm not trying to hijack the thread, I'm trying to say that some ladies have said that a happy, repeat client is better than a tip.