I'm sorry to do this to you Woot, but I have to comment my horrible experience with Dyson. Disclaimer here, my Dyson was not from Woot. However I did by a factory refurbished Dyson for about $250 maybe a year and a half ago. It was the DC41 Animal I believe? Anyways, complete garbage. Suction was about average for a $100 vacuum (couldn't even imagine paying $400+ for it...), and the bag less was nice - at first. My shedding german shepherd quickly did a number on this thing. First it was just an annoyance with how often I had to dump the canister (3-4 times living room, 2 each bedroom). Then it just stopped working altogether. Dyson warranty was horrible to deal with, so I took it to a local mom and pop vacuum repair shop. He pulled it apart right in front of me and showed me all the burnt up plastic that was pretty regular for these things.
Instead of a repair I walked out with a $200 refurbished (by him) Riccar. If you haven't heard of them, now is the time to learn. They're made in America and refuse to sell to big-box stores, even turning down a huge offer from Costco because of the desire to have the place you bought it from be able to service it. They're pricey, and new run quite a bit more than a Dyson for similar features, but the entire brush is metal, and the suction is leagues better than any Dyson. It's a 15-20 year vacuum, instead of a 3-5 year Dyson. Oh yeah, and my Riccar refurb is a 2009 model, and I still wouldn't trade it for a brand new in box, top of the line Dyson.
If you absolutely want a canister, bagless vacuum, Dyson is your best bet. But if you're just in the market for a vacuum, do yourself a favor and walk into your local mom and pop shop and ask some questions, maybe even take one for a "test drive". I think you'll be as surprised as I was, and turn away from Dyson.