Lot's of other places to meet women than bars.
Also, most dating agencies might claim they screen out the looneys, but 9 times out of 10, the only qualifier is money.
A dating service might put you in touch with attractive, worthy women, but if you can't create attraction and rapport, it won't matter.
Investing in yourself by learning the skills that are required to attract women into your life and to make yourself attractive is a much better investment.
One that will last your entire life, and will come in handy in numerous, everyday situations.