Bestbuy offers Shark Detect Clean & Empty, Cordless Vacuum for $230 (reg $500) with free shipping.

Product Description:
The Shark Detect™ Clean & Empty Cordless Auto-Empty System features 4 ultra-intelligent deep-cleaning technologies that detect and react to dirt, combining to boost power and increase cleaning up to 50% (based on ASTMF608, Eco vs. Boost). After every clean, the Auto-Empty System charges and empties automatically.

• ALWAYS READY, ALWAYS CHARGED
  Automatically empties into a 2L base and charges while docked, so it’s always ready for the next clean. No more manual emptying after every clean.
• 1000X LESS DUST EXPOSURE** VS. TRADITIONAL EMPTYING
  Fine dust and debris get sealed away after every clean, keeping them out of the air you breathe—no more dust clouds. **Based on third party-plume testing while emptying vs. upright manual empty (US/CA: NV130)
• FOUR DEEP-CLEANING TECHNOLOGIES
  Four powerful cleaning technologies detect and react to hidden dirt, different floor types, edges, and low-light areas, boosting power to increase cleaning up to 50%. (*Based on ASTMF608, Eco vs. Boost mode.)
• UP TO 60 MINUTES OF RUNTIME
  Deep clean your whole home with up to 60 minutes of runtime. (In Eco mode, measured at the hand vacuum.)
• MULTIFLEX® TECHNOLOGY
  Flex the wand to help clean hard-to-reach places like under furniture.
• XL BASE CAPACITY
  Automatically empties into the 2L bagless base, capturing and trapping 99.97%* of dust and allergens with True HEPA filtration. (*Based on ASTM F1977, down to .3 microns.)
• LIGHTWEIGHT VERSATILITY
  30% lighter than Shark® Vertex® Pro
• HEPA FILTRATION AND ANTI-ALLERGEN COMPLETE SEAL
  Captures and traps over 99.97%* of dust and allergens. (*Based on ASTMF1977, down to .3 microns.)
• NEVER SWAP NOZZLES
  You'll never have to swap nozzles when switching from carpets to hard floors—the Powerfins Multi-Surface brushroll tackles four cleaning targets: fine dust, pet hair, large debris, and dust along edges.
• WHAT'S INCLUDED
  Crevice Tool and Upholstery Tool