I found raising turkeys annoying, and expensive. The silly things were always cold, so I couldn't let them free range. Also, the tiny baby stage was HORRID, since if you don't have a broiler chick in with them, they won't eat on their own.
I think it took mine a week before they ate without encouragement.
The geese I tried this year were much better. THEY know how to eat by themselves (just like chicks). Also, once a decent size, I don't think they can get cold. Marvelous! AND, maybe 80% of their food intake was my lawn grass.
But, some people love their turkeys.
I would ask around, and see if anyone near you has tried turkey, and ask them if they had disease issues.
Then, try small, buy maybe 5, along with a few broiler chicks to teach them how to eat, and just see if you like it.