Highways east of the Manzano Mountains are enjoyable, especially the northern part on 337, but it is a choice of interstate or desert to get there, as it is in southern Nevada.
Both fuel stops (Albuquerque & Mountainair) were better than 66 MPG, probably due to lower speeds and altitude.
Couple days later I made a high speed (85-95) run on the interstate to help two grandsons with separate projects. Only 42 MPG.
Although no attraction to Las Vegas, NV, I do miss going to Corn Creek Springs (22 miles) or Mt Charleston (30 miles) to hike (well, at my age, more of a stroll).