What about conducting the first date via skype or facetime, or even a phone call first? Saves money and time.
In general I am opposed to using such methods for dating. Live personal interaction has its advantages that can’t be appreciated through technology. To build chemistry, dating in person 1-on-1 is preferred. The whole dating experience becomes real whereas over the internet, it’s too remote. The vibe is comprised. Mannerisms can’t be truly assessed.