It would be foolish not to consider the amazing Rainbow vacuum if money is no option. Sure it might cost significantly more than a built in (i.e. central) vacuum, but it uses water to cleanse the dirt from the air. It also allows you to perfume the air with household scents. You would have pleasant smelling air with every usage. If you have a bagged vacuum on the other hand, like the Kirby, you will be recirculating the same dirt in the bag with every use. Given the Kirby's huge bag, you'll be smelling whatever is in that bag for a very long time. Stinky dog smell just doesn't happen with the amazing Rainbow. There are cheaper options available if you are willing to try the Sirena and some other brands whose names escape me at the moment.