OMG! The prices! I bought a Shark Navigator when they first came out at Walmart for $99. Well, after all these years, 2 kitty cats (one medium hair calico female and one long haired neutered male black tabby), long hair on myself, I think I finally killed it. I have been vacuuming up orchard hay for my current little baby and I think that is what did it. I hear an escape of air when I turn on the roller floor unit and am tired of cutting hair and what not off the brushes. Living in an older building with carpet and baseboard heat, there is a lot of dirt and dust to eliminate (cough, cough) and help the allergies. Need something that can reach the ceiling for the dust and bugs that are seeking refuge. Especially that little black furry spider that has been alluding me. I had checked the original site of Shark/Ninja. Holy Cow Patties! $499.00, Walmart @ $399.00....