You can stay at Bally’s in Las Vegas for $56/night which also includes two buffet passes per day!
Travel Zoo also has the Tropical Lifestyle Beach Resort in Puerto Plata, DR for $12/night per person! This is an all-inclusive resort as well.
You can still get $5 for every person you invite to TripAlertz. If you still haven’t joined, you can use my link or one of the links in the comments.