Having Female Companionship
It might appear that only women take advantage of the dating situation in big cities, but men might do the same thing. Many of them are determined to stay single and advance their career, so they only want to have dinner with a woman for some female companionship. Others might see it as a status symbol if they are seen with a different woman every night of the week, and the price of dinner is just a part of the package.
Finding a woman who is attractive and dresses nice is easy enough, and convincing her to meet him at a good restaurant for dinner is often one that is accepted by women. As long as the meeting is in a public venue, most women are willing to have dinner with someone they barely know. While they might be looking only for a way to stretch their budget, the ones looking for a relationship will be disappointed when no invitation for a second date appears.