You should have plenty of luck in the B&S ($500-$700). You might check ebay as well. I've scored a 5 RLBL suits total and I've never paid more than 575 (average closer to 450). 2 I bought from the local RL store in Dallas, 2 from the RL Factory store at Woodbury Commons (sad to see they can't do phone orders anymore from the factory stores) and 1 from Yoox. If I were you I would keep an eye on the B&S forum in the meantime. If you don't score one before Christmas, you should be able to get a good deal during RL's semi annual sale (post Christmas-New Years seems to be when they really start to mark stuff down). If you don't have a local RL store, you can always call one and place a phone order. Good luck.
If you have really quick internet connection and above average hand-eye coordination, top-of-the-line professional gaming mouse, with luck, you might score RLBL suits from Gilt from time to time. Last one I remember was about 2 months ago, around $800-$900ish.