As the owner of a Dyson V10 I highly recommend you look at another brand. Dyson's are terrible and my $180 shark picks up twice as much. The Dyson will roll right over visible crumbs & dirt and leave them there (or flick them across the room). More on reddit.com

V15 from Costco for $499 More on reddit.com

The Dyson V8 Animal extra is $150 off right now. Priced at $449.99. More on reddit.com

Dyson V15 Detect Plus has 2 powerheads, crevice tool, mini dusting brush, and hair screw tool. Dyson V15 Detect has 2 powerheads, crevice tool, combo tool, and hair screw tool. Dyson V15 Detect Total Clean Extra has 2 powerheads, crevice tool, combo tool, mini dusting brush, hair screw tool. Additionally it has a stubborn dirt brush, mattress tool, up top adapter, and flexi crevice tool. That makes #3 the easy choice especially if you already have a Costco membership. A few tips: The Dyson V10-V15 are quite bulky and can get heavy in the hand. If you want a lighter weight check out the V8 and V12 Detect Slim. I don't like to use the tools for too long because holding a cordless vacuum for dusting is heavy and bulky, so you might want to get a canister vacuum if you like to do a lot of furniture and upholster cleaning. A canister's hose and tools are much lighter and more maneuverable. If you have carpets or large rugs you'll want to have a corded vacuum with a carpet powerhead/brushroll for weekly deep cleaning, cordless vacuums are good for daily cleaning but still don't have the suction power, move the air volume, and agitate the carpet well enough to fully replace corded vacuums. The Dyson V15 has the suction power but not the air volume or carpet agitation. Hope that helps. More on reddit.com