The week before Valentines, my boyfriend and I were driving through Las Vegas and I snagged us a room on hotels.com for $60.
I made sure to get us the LUV TUB room and it was awesome! Mirrored ceilings above the bed and bathtub, as well as a tub the size of my kitchen.
The only cons were that the tub took foreverrrrr to fill up, there were no jets in the tub (would have been rad if there was) and like all casino hotels the parking/check-in/elevators/rooms are so flipping far apart... I swear we walked a mile between them all just to get to our room.
All in all, if you want to stay ON the strip and get somewhere cheap (obviously check around because it isn't always going to be $60) and not the norm under $100, plain hotel room, Imperial Palace is the way to go (remember: book the Deluxe Luv Tub room!)