For anyone who lives in Vegas...........I booked a room at Monte Carlo from June 12-June 17/11. I decided to upgrade it to a suite today, but couldn´t do it online. I went to expedia and travelocity, and both sites are showing the monte carlo sold out that week...........during the week. What´s happening in Vegas that week??

I don't live in Vegas, but just did a quick search for any conventions in town during your dates. The largest event that is and expected 20,000 attendees for the Licensing International Expo 2011.

06/11 - 06/12 - Wallace/Sharp Wedding - Caesars Palace - 30 Attendees Expected
06/11 - 06/12 - Dotson 2011 Family Reunion - Golden Nugget - 100 Attendees Expected
06/13 - 06/13 - Nevada WIC Training - Cashman Center - 150 Attendees Expected
06/13 - 06/14 - Bridgeport Fittings Inc - Rep Council Meeting - Caesars Palace - 16 Attendees Expected
06/13 - 06/14 - Labor Arbitration Institute Program on Labor Law & Labor Arbitration - Las Vegas Convention Center - 300 Attendees Expected
06/13 - 06/15 - Symposia Medicus - Challenges in Obstetrics & Gynecology - Harrah's Las Vegas Hotel and Casino - 200 Attendees Expected
06/13 - 06/16 - US Department of Veterans Affairs - National Contracting Conference 2011 - MGM Grand Hotel and Casino - 700 Attendees Expected
06/13 - 06/17 - International Quality & Productivity Center - Annual Call Center Week - Planet Hollywood Resort & Casino - 450 Attendees Expected
06/14 - 06/15 - Paragon Education - CEN (Certified Emergency Nursing) Review - Treasure Island - TI - 25 Attendees Expected
06/14 - 06/16 - Licensing International Expo 2011 - Mandalay Bay Convention Center - 20,000 Attendees Expected
06/16 - 06/19 - HRC Federal Club Council Leadership Summit - Encore at Wynn Las Vegas - 175 Attendees Expected
06/16 - 06/20 - Rossin Wedding - MGM Grand Hotel and Casino - 20 Attendees Expected
06/16 - 06/22 - Elon Salon Annual Conference - Mirage - 100 Attendees Expected
06/17 - 06/19 - International Order of the Rainbow for Girls - Nevada Annual Grand Assembly - Texas Station Gambling Hall and Hotel - 200 Attendees Expected
06/17 - 06/23 - 2011 Vacation. com Annual International Conference & Trade Show - Mandalay Bay Convention Center - 1,000 Attendees Expected

Thank you kindly

May I ask how you dug that up?

Have you tried Google? This is the first hit when I searched for "Las Vegas Conventions June 2011"
http://www.lasvegastourism.com/conventions_jun.htm

This is right below it: http://www.lasvegashotel.com/convent...ntion-0611.htm