All the responses about supply and demand aren't accounting for the fact that taxi drivers are a protected industry in New York.
You are unionized, have benefits, and have protections preventing any ol' person from starting a taxi service that are VERY COSTLY to NY residents. But it ensures a safe and mutually beneficial industry.
So a big fuck you to anyone who price gouges. I hope you lose the medallion, lose your job, and lose your benefits.
Cheers.