Yes, $165 is the summer rate ($275 high season)... just goes to show how over-priced it is. When I played there (twice), I hardly saw others on the course.
Don't know much about resort on Lake Meade, but Lake Las Vegas is the largest man-made lake in Nevada. And with the draught that they had in SW, I expect you will never see another man-made lake that even approach LLV.