Probably the same reason people devote entire media rooms to the San Francisco 49ers, or Lego sets, or Marvel Avengers.
Or they spend thousands on a huge home gym, or a fancy chef’s kitchen.
Or a garage filled with a cool fishing boat and hunting stuff or 4 wheelers and camping equipment or an RV worth hundreds of thousands of dollars.
Or they own 30 different guns, thousands of rounds of ammo, and dozens of gun accessories.
People just like different things and have different interests.