Cheap vacuums clog, lose suction, and die in three years. This actually cleans and lasts a decade.
Why Not Just Buy the Cheap One?
Dyson's digital motor maintains suction through a HEPA filter that doesn't clog like the dense, poorly-designed filters in cheap vacuums from Shark or Bissell, which lose 70% of their pull within six months. The cordless battery is genuine lithium with smart power management; budget cordless vacuums die in two years and can't be repaired.
The Buy-Once Math
Buy a $200 budget vacuum, get two years of declining suction and clogging, then replace it—that's $600 in ten years of weak cleaning. A Dyson V15 costs $750 and actually gets your floors clean while the suction never degrades beyond the first year's baseline. You're paying $75 per year for a machine that actually works versus $60 per year for one that quits mid-cycle.