Should I go to the American Chemical Society Meeting in Washington in August?

For most recent years I have attended the American Chemical Society National Meeting usually held in August. This year it is being held in Washington, but I have doubts on whether I should go. With car expenses, hotel, and meeting registration it is an expensive proposition. In the past NJIT has paid for at least part of it, but the budget will be very tight and I may have to foot the bill for everything. Since hotels in the city are so expensive, I usually stay at a hotel in Rockville, Maryland and take the METRO to the meeting. If I don't go to that meeting, I will likely go to several one day meetings in Manhattan throughout the year. I have time to think about this.