There are still a lot of unsafe areas in Brooklyn, mostly eastern Brooklyn. I moved to Queens about seven years ago (Long Island City), but I'm right next to the Pulaski Bridge so I walk into Brooklyn all the time to get food in Greenpoint/Williamsburg. And you're not wrong - everything is expensive. Mexican places charge like $5 per taco, a plain pizza pie is like $25 - $30, and grocery costs are absurdly high to the point where I walk out with a small bag of stuff and I've spent like 50 bucks!