Looking for a LNF for the Cosmopolitan Las Vegas from May 15-21 if possible.

Marriott's rates (don't you love prices that change nearly every day?):

Terrace Suite One Bedroom
5/15/2013 $270.00
5/16/2013 $270.00
5/17/2013 $360.00
5/18/2013 $400.00
5/19/2013 $600.00
5/20/2013 $600.00

Terrace, Guest room, 1 King, Balcony
5/15/2013 $220.00
5/16/2013 $220.00
5/17/2013 $280.00
5/18/2013 $320.00
5/19/2013 $440.00
5/20/2013 $440.00

And ideally although it'd need a decent discount, Wraparound Terrace
5/15/2013 $320.00
5/16/2013 $320.00
5/17/2013 $610.00
5/18/2013 $650.00
5/19/2013 $950.00
5/20/2013 $950.00