A few questions and comments
Who was that authority vamp who slept with everyone? She was someone from the bible, bill says. And she replies it was mostly fiction written about her. That places her at over 2000 years old
Godrick was around 2000 years old. I remember him saying "I was alive when Jesus walked the earth but I regret not meeting him" Russell was 3000 years old and I've never seen anyone older. He killed Erics fam with werewolves over 1000 years ago. So that's Eric's age just about. Bill and Pam are about 100-200. Bill was turned during the civil war. Jessica is like 5.
And last, animals are expensive dude. Especially when you gotta pay to transport lions and bears (they hate cgi. It's why they have real wolves). Then you're responsible for their trainers, insurance to actors working with them, food, PETA. Ask hbo about Luck an what happened when 3 horses died. It's over!!! And once Sam changes to a lion once, he can't ever get into a fight and come with something less