Why is my banker trying to push us into a balloon-rate?

My husband & I are trying to buy a small farm next to my parents' place. We only owe about 1/4 of what our current home is worth now, and we do not intend to live on the farm next to my folks. My husband has had his business for a while now, and it's doing well. His credit is good now. So, I'm wondering why our local banker keeps telling us that, even though we're approved for a loan, it would have to be a balloon-rate because we still owe a fraction on our home's mortgage. Do loan officers profit more if they convince a customer to take a risky loan like that?