Believe it or not, the Roadway Inn off of SR 84 (Marina Mile) is decent. Rooms renovated within the last 2 years, van service, ok sports bar attached. Free breakfast, nothing special- little boxes of Cheerios, apples, muffins, etc. The price is right though; used to be about $60/night out the door with crew ID no matter what was going on in town.

You'll be able to get nicer places for that price and maybe even cheaper sometimes (Priceline worked well for me); the wild card in South Florida is demand. The place you found for $80/night 2 weeks ago now wants $225. That was the nice thing about the Roadway- one price all the time.