I've seen good reviews on the TUG (Timeshare Users Group, tug2.net). If you want to stay in Las Vegas an entire week, it is probably a good idea. I keep hearing that hotel prices are inexpensive there but everytime I actually check online, they are anything but cheap. If I didn't trade into another timeshare, I'd want to stay on the strip and prices range from $99 for Luxor to $300+ for Bellagio, Venetian, Mandalay Bay etc.