You can build a small dog house, but a stake in the ground, put a chain on the stake to the dogs collar and feed/water regularly and a dog will survive. Or you can build a fence around your property for running space, let the dog stay in the house sleep on the bed with you, cuddle up on the couch while watching TV (even though it is wearing out your couch), feed it top of the line dog food with occasional table scraps, and make sure it has a full water dish even though it will insist the toilet water is better.
Which one is costing more?
Which one is the pet and which is the animal? (OK we are leaving the actual human being out of this question!)