There are upright and canister. For canister type, more expensive ones,
Delphi and up, has electric hose, a must for carpets. There are two entry
level models, Olympus and Capri. I choose Capri since it has both bare floor
tool for hardwood floor and turbo air brush tool for area rugs.
Used Amazon tracker, set it to send email when price go below list price.
Never seen it on sale, except last Thursday night, was only $50 off, but was
sold by a third party vender, fulfilled by Amazon therefore no tax.