[sternroolz]

Cheapest on strip rooms in the area of Wynn to MB are Casino Royale and possibly Trop and IP. Also include Hooters as it is very close to MGM. If you include walkable to center or south strip, Wild Wild West and Golden Palm are walkable. CR and IP are under $50 weekdays. GP and WWW are as low as $20-30 weekdays. Weekends are substantially more. FWIW discounts can be had at Orleans with weekdays sometimes as low as $35 on their mailing list. Orleans is leaps and bounds better than any of these places.

Cheapest CASINO rooms on a regular basis are the "vintage" rooms at El Cortez, Western, Gold Spike, and possibly Vegas club. Most of these are ~25-30 a night weeknights, with some as low as $19 a night. Weekends are $35+

Not that I recommend staying at any of the above.