Expensive time frame! Must be a ton of conferences including the one I am going to attend. I used this site's PRICELINE link when bidding. Bid history: 4* only Dupont Circle-Woodley Park $120 4* same as above, increased to $160 4* added White House-Downtown, same $160 4* only Georgetown-Foggy Bottom, $162 4* only Convention Centre-Capitol Hill, same $162 4* only Crystal City, same $162 3.5* only Dupont Circle-Woodley Park $130 3.5* added Georgetown-Foggy Bottom, increased to $162 3.5* added White House-Downtown, same $162 - was offered immediate rebidding for $202 3.5* only Convention Centre-Capitol Hill, same $162 3.5* only Crystal City, same $162 3.5* only Dupont Circle-Woodley Park, increased to $180 3.5* added Georgetown-Foggy Bottom, same $180 3.5* only White House-Downtown, same $180 3.5* only Convention Centre-Capitol Hill, same $180 3.5* only Crystal City, same $180 3* only Dupont Circle-Woodley Park $165 3* only Georgetown-Foggy Bottom, increased $180 - was offered immediate rebidding at $220 3* only White House-Downtown, same $180 3* only Convention Centre-Capitol Hill, same $180 - was offered immediate rebidding at $220 3.5* only Dupont Circle-Woodley Park $200 3.5* only Georgetown-Foggy Bottom, same $200 - finally succeeded