Not looking for something somewhat like a floorless tent. Did you look at the dimensions of the snow peaks rig, giant.I picked up one of these a few years ago for desert trips with little kiddos: Northpole 30-foot Party Tent | Overstock.com
I think I paid $100 with shipping at the time- It's about 40 lbs as well. Probably won't hold up great under high winds, but for the $ and intended use, it's a great deal. I can fit at least a dozen people in camp chairs in it.