Actually, I love Eurotruck 2 and American Truck Sim. I find driving the different routes, with different or my favorite trucks, relaxing. I can eat hours, days even, driving in those games.
This is because I find the driving engaging. It requires constant attention, and near constant interaction. Course and speed corrections, interchanges, traffic...driving equates to doing something.
Hyperspace jumps, on the other hand, are watching, not doing. It's spectatorship. And just think of how much time a long haul trader spends just watching their ship jump as opposed to flying it, during any gaming session.
This deserves more rep. I can waste hours in Live for Speed, just drifting cars around a track against myself. No direction given to me, no goals, but the act of driving itself is a challenge. I can waste hours on my Enduro bike, riding the same stretch of trail again and again, because it is a physically challenging exercise.
At the moment Elite is keeping me hooked because I love the idea of it, I really like the atmosphere and universe it is set in, and I have high hopes for its future in the form of more challenging gameplay. If Season 2 doesn't deliver I will take a break, maybe disappear to No Mans Sky or Star Citizen (if it ever launches).