I have soured on Dyson, even though all we own is a Dyson animal upright, a V8 and V10 sticks. They just seem like they are trying to feature bloat the hell out of every product. The price tag on some of their stuff is wild. For that reason, I pick the V10. The V10 has decent canister size, power, battery life, for a decent price point. My main gripe is the heads seem like a downgrade, the V10 comes with a universal head, and they don't officially make anything else for it (but you can use other gen heads). The universal head kicks things like cat litter all over the place on tile or hardwood, whereas our V8 with choosing the bare floor head works better than the V10. All of that said, the V10 with the V8 bare floor head works best of all, so we're likely just going to buy another generation bare floor head. Answer from Tex-Rob on reddit.com