it was rumored that rooms are filling fast, so hurry and get Yours before all the good ones are sold out. If You want to stay at Paris, You might be too late but do not worry, there are plenty of other options just about as good. The Affiliate Summit West is being held January 18 - 20, so be sure to get there at least a day before and plan to maybe stay later.
If You cannot get a room at Paris the next best thing would be right next door to the North at Ballys or to the south at Planet Hollywood. And across the street at Bellagio, Caesars Palace or Cosmopolitan. But since Paris is very convenient to the Las Vegas Monorail, this opens options all up and down the Las Vegas Strip. MGM would be a far walk but not when it is a direct stop on the monorail, just a short walk and You are at Paris via Monorail and as far away as the Westgate, You are just minutes via the Monorail.
Without using the Monorail, You will want to stick to all the center strip choices so add to Your choices: Cromwell, Flamingo, Harrahs, Linq, Mirage, Aria, Vdara and even as far north as the Venetian.