Even 100+ hours (without getting sick of it) is insane for a modern game for me. Like I put 35 hours into God of War Ragnarok and did most of the things (left maybe 10-15 hours worth of samey boring or overly difficult side activities) and I felt that overly padded that game out, I would have been happier with that game if it were about 20 hours long, I think. Still a great game though. One of the small handful of games I've completed the story for in the past five years.
Persona is the only other series I can usually get close to that many hours in without getting sick of it (I think I put 80 into Persona 5).