If you raise a duckling from an egg, and it imprints on you, then you will have a friend for life.
I LOVE call ducks. They are tiny and the most adorable creatures you will ever see. If you can manage to hatch call ducks, you will be the happiest duck parent around. The babies are tiny, and they run so fast! They will chase you all around the house, if they think you are "mom". And they are so small, you can cuddle with them on the couch and watch tv. Once they are grown, they are still little, so their pen does not have to be as big as other ducks. Some people keep them in pens that resemble a rabbit hutch....that works too, if you don't have lots of space for a large enclosure.
Calls are messy, just like any duck. The females are very loud, so if you live with neighbors, maybe you don't want females! Every time we walk past the back door, my ducks start quacking their heads off! Even my original pair, which were not tame, are now trusting enough to eat from my hand. I recommend call ducks, because they are all-around excellent ducks!