Yeah, the bad news is that $175 is arguably on the lower side for the best tutors in NYC. I used to live in NYC and could recommend a couple of independent tutors there, but they all charge somewhere in the $150-$250 range. At least the tutor you found is cheaper than Princeton Review
, though--last time I checked, they were charging $350 for an hour with one of their "premier" tutors! Ouch. And they used to charge $450 a couple of years ago. Crazy, right?
You could also try craigslist and gmatix.com if you haven't already looked in those places. You might get lucky and find a diamond in the rough who hasn't figured out how high the market rates are yet.
Good luck! When you get to a 700+, you'll hopefully feel good about whatever money you ended up investing in the GMAT.
Helping students kick the GMAT in the nuts since 2002... www.gmatninja.com.