The Mars InSight landing site is just plain perfect
https://phys.org/news/2018-11-mars-insight-site-plain.html
"If Elysium Planitia were a salad, it would consist of romaine lettuce and kaleāno dressing," said InSight principal investigator Bruce Banerdt at NASA's Jet Propulsion Laboratory in Pasadena, California. "If it were an ice cream, it would be vanilla."
Yes, the landing site of NASA's next Mars mission may very well look like a stadium parking lot, but that is the way the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) project likes it.