Is a Dyson cordless vacuum worth the price over cheaper alternatives?

Across the high-trust sources we read, Dyson cordless models consistently rank near the top for raw suction and hard-floor pickup, but specialist communities like r/VacuumCleaners regularly flag durability concerns (battery degradation, clogging, motor failures within a few years). If you want the strongest cleaning performance and accept Dyson's repair history, the V11 or V15 are defensible; if you want long-term reliability per dollar, mid-priced Shark, Levoit, and Bissell models score competitively in expert testing.