My wife has maybe a couple hundred books. If you don’t count my comics or my RPG manuals-- for reasons– I own maybe a couple dozen. Counting the rooms we don’t normally keep books in, we own a couple of times that average (if it’s correct) per room in our house.

Completely off-topic, but I hate that we use averages for everything. Mode or median would be better for this because then you have a better picture of how many books people generally get - people like y’all with 100+ books throw off that average just as badly as people like me who have like, 3 books lol.