I guess boutique doesn't upgrade to 4*... Bid up to $180 for boutique USW & USE + free rebids 10/13 through 10/14, /15, /16, rejected. Conference high season, hotwire is $219+ for Union Square, I figured just bad timing and I'd have to pay. Downgraded my bid to 3*, 10/13-10/16, and got the 4* Hilton Financial for $100. Weeeeeird. (Also, forgot to try extend-my-stay. Just as well, I got the 3 days I wanted instead of the 2 I was eligible for.)