I really depends on the technologies. I work in mostly the quant finance industry, which usually uses object oriented languages like C++ and Java. The bigger companies (mostly hedge funds) do want to see candidates with at least a BS in Computer Science. The smaller companies really don't care as long as you have a good proven track record and know your material.

In my industry, making $110k for 10 years of experience is low. Probably someone like you would be making at least $130k total, maybe more like $160-170k.

This is a well paying industry though. Firms in the Valley usually are a little lower, more in the $120-140k range for 10 years of relevant experience.

If you are a programmer in web technologies, though, I think you are pretty inline. There might be some upward mobility, but not much unless you start managing people and moving more hands off, which will increase your top line but may limit where you can move (its easier to find a hands on job than a management job).

You seem well paid and established enough where applying to NYU or Columbia to get a BS may make lot of sense. These are expensive programs, but I think getting a brand name degree in the NYC market helps a lot. The BS that you would get from these programs versus a CUNY program would be worth it.

With all of this said: The tech startup industry in NY is growing. You might need to take a hit on comp, but if you join something you think is promising, you can really grow your compensation and standing with a small firm. Check out the NY Hatchery events to start getting a feel for startups. Many of them are looking for good people.