As someone on both coasts often, NYC seems to have many fewer tech events. I might get a hackathon or two a month in NYC, but in SF/SV sometimes there are 7 in a single weekend and it is rare to have a weekend without one. The prizes are much better too. A 5k purse is normal, but they often go up to 40k or even 850k investment for the top two with the upcoming LAUNCH hackathon. The conference situation is the same. You get much bigger, much more frequent, with many more companies in SF/SV. If you are looking to do business development or just find a job, your chances are much better. I'm not saying NYC is bad, it has something. The something it has is just much less than the tech center of the country.