Target offers the Dyson DC50 Allergy Bagless Ball Vacuum Cleaner for $279. Coupon code "TGT4QBJF" drops it to $274. With free shipping, that's $26 under the lowest total price we could find for a similar Dyson. It features a washable HEPA filter, dusting tool, telescope reach wand, brush tool, crevice tool, and dusting brush. Deal ends November 29.
Note that it's currently on backorder with an estimated shipping time of two to four weeks.