Well if you wanna think about it logically... No. It would not be that great to have real, living Pokemon. The answer as to why? Greed. Like in Pokemon there is always the evil team... now imagine that only 10x worse. Every Arsonist would have a Houndoom with Sunny Day + Flamethrower ready to fire at your house. Every pedophile would have a Hypno to lull their prey to sleep. Rapists would have Tangela ;D. Robbers would have Weavile. Just imagine all of the turmoil :O!