I like having strong dinosaurs, and you have enough material to create more with similar ferocities, so why not. That’s my opinion because I like progress and challenges, otherwise I get bored. I just don’t find it amusing to have hundreds of the same creatures “forever”. But you should do whatever you find more entertaining, it’s a game. Myself I already have a level 30 Monostegotops, and I’m creating a second one right now. Cooling down takes a day, so you’ll be able to use once a day. I always need it during the Fight for funds events, and some tournaments, the game doesn’t get much harder because of it (it’s my strongest dinosaur).