Dyson via eBay offers the factory-refurbished Dyson DC50 Animal Compact Vacuum with Tangle Free Tool for $279.99 with free shipping. That's $120 under the lowest total price we could find for a new unit today. (For further comparison, we saw a new model bundled with a $90 credit for $300 in November.) This bagless vacuum features a 2-tier radial cyclone, carbon fiber brush bar, self-adjusting head, stair tool, and combination tool. It includes 6-month Dyson and 2.5-year ABC Vacuum Warehouse warranties.
There's a less expensive way, and then there's the way that works for you. The two may not be the same.