You may well have a length of stay problem only in so far as Priceline rates under $70 for 4* Capitol Hill and Downtown may be available for one or two nights of your stay, but they'd need to be available for all 4. But that doesn't mean you won't succeed using Priceline for your stay! What we need to know is where you'd like to be in town? Where you NEED to be? How discretionary is your trip or what is your fallback hotel, in order to determine how high you should be bidding. As far as backup hotels (contingent on where you need/want to be in the city), let me suggest that for your dates Orbitz has the Hilton Washington And Towers for $119 and the Radisson Barcelo for $119. (Both are available cheaper elsewhere as prepaid options, but I'm suggesting 'backups' here so you want them to be cancellable. Also, Orbitz will first try to give you "OrbitzSaver" rates that are $119... and prepaid... so you have to click a couple times on the link for more rates before you see the same, cancellable rate.) Hilton Washington and Towers is a 3* in DuPont, on the corner of Connecticut & Florida. It's a HUGE property, has one of the biggest ballrooms in DC, I've actually been to a seated dinner there for 2500...! Radisson Barcelo is also a 3* in DuPont. But I can say that both are perfectly decent properties in my experience. Radisson is probably more walkable to downtown if that's what you're looking for, though both are walkable to the metro. Capitol Hilton (Downtown, 4*.. and right downtown at 16th & K) is available on Orbitz for $139 fully cancellable. Surprisingly for a weekend right at the end of summer, DC room rates and availability doesn't look bad at all. So I imagine you'll ultimately do pretty well on Priceline. Just share a bit more about where you want to be in town, what qualities you want in a property, and I'm happy to suggest a strategy.