I will definitely be there. I made my reservation today.
Re: cost of hotel and airfare... here are my suggestions: I don't know where you are flying from, but fly into BWI instead of Reagan National. Then take the MARC to Union Station and Metro from there. The MARC will cost you $10 (I am fairly certain) and you will save more than that flying into BWI (it's a Southwest hub I think). Book now...the reservations will be cheaper (duh). The trip will be longer, but likely cheaper.
As far as the hotel, it's like the cost of living here...too high. That is actually a really good rate for a hotel. I mean, I am sure you can find something less expensive, I think there is a Comfort Inn or something like that near there. But, if you know someone who is going alone, get the double and share the cost. The only deal is Crystal City pretty much is Reagan Nation Airport. Airport = high $$ accomodations. I am impressed with the rate frankly, but with that said...it still cost something and $$ is $$.
I hope to see y'all there!!