It's off the beaten path but the savings are tremendous and the property is new and well maintained. Over on the Strip, you're going to pay double or triple what HGV will charge and the rooms aren't quite as nice. On top of all that, you get HHonors points here.
Not only are the prices better than the Strip, but HGV doesn't nickel and dime on WiFi. It's free. You should easily be able to pay for a car rental with your savings (and then be able to explore downtown or go to Summerlin for a little more local flavor) but even if not, the monorail stops right next door at the old Hilton.
My only complaint is that the air conditioner can't be set below 68. It's not that it is totally unacceptable but I wouldn't mind turning it down just a couple more degrees at night.