The only appeal another tiger has for me is getting a 2023 frontier quality tiger, and i dont even think that our tigers are to bad so even that argument isnt that strong for me.
I quite honestly would prefer every single species of wild cat over a third tiger.
Adressing the anniversay question: I think anniversary animals that would be easy to make but still really cool are: barbary macaque, squirrel monkey and roosevelt elk
Well we have already had a deer for an anniversary animal, maybe a Masai Giraffe, a Grevy's Zebra, an Asiatic Lion, an African Leopard, a Black Rhinoceros, maybe a Nile Crocodile, a Western/Eastern Grey Kangaroo, Coyote, another tortoise, North American River Otter, Bighorn Sheep, Harbour Seal, Emperor Penguin, another monitor lizard, False Gharial, a crane species like Grey Crowned, Wattled, Blue or Whooping Cranes, Greater Kudu and perhaps Wisent, American Badger or Canada Lynx, Tufted Capuchin.