The Tropicana has a great promotion that almost pays for itself. The room $50, $50 free slot play offer good on weekends.
Use coupon codee: IE50210
Call 1-888-381-8767
From my understanding slot play can be used on any machines, so you have a decent chance of getting a chunk of your $50 back.
If anyone has more details about this, please post, and also post experiences.