I agree with all the other women here on this thread. The only reason men can get away with not paying for the first date and still get some has NOTHING to do with whether or not he paid; it has to do with HIM. The fact that he did not pay is only a symptom of the overall image (is he attractive, confident, intriguing, intelligent, sexy). Simply put, if a guy is all of these things and he knows he's a catch and knows he doesn't have to pay to bring this girl home, the girl is going to sense that just from his demeanor and think, "Well shit, he must really be great in bed" etc. etc.
A man without those qualities who does not pay for the first date stands absolutely no chance unless he's with a woman with no self-esteem or extreme daddy issues.
Case in point, I went to a bar last night with a guy and was very open off of HIM and his personality -- he paid for every single drink, and I still hit. So how is THAT for anecdotal evidence? :P