Most all of the experts here have amazing math tutors in NYC - - as well as the ability to answer your questions online. Each company has tutors who will help you master the skills you need, though each of us, I suspect, will espouse different philosophies on how, and what, will help you get your highest score. Once you find someone here, or elsewhere, with whom you resonate, it will behoove you to explore how the person (or company) plans on helping you, personally, manifest your best score.
Keep in mind that going to business school, and the related hoops you need to jump through, are an investment in your future. This involves a commitment to the process as well as a respect for the financial compensation for getting top service, if that is what you seek.
You might get lucky with a 'reasonably' priced tutor (I'm not sure what out means, exactly.) This might be a tutor from Craigslist who put out their shingle.
Things to watch out for:
>Beware of someone who depends on only commercially available materials, and who doesn't weigh in on your personal strengths and weaknesses.
>Be wary about working with someone who will simply regurgitate math without a deep understanding of GMAT math.
You might get lucky and find yourself a superstar through the reasonable regular channels.
Getting accepted into top tier schools translates into higher paying jobs later on down the line - - so now is not a time to skimp on great service. But of course, it's always up to you and your budget. If you want the best, you'll often wind up paying for it. That is the way it works. Especially in the business world, right?
Be sure to work with someone who has endorsements, great references, a track record of success and has been vetted by a company or endorsed by places like beat the gmat, consultants, other professionals, or people you trust.
Let any of us know if you have questions!
Good Luck!