Electrolux's new UltraCaptic cleaners compress dust into an easily disposable disc. Suction may be important but cleaning the dirt out of the bag is also a win factor.
The compressor means that the UltraCaptics can hold more dirt before requiring you to empty it. The basic version, the UCOrigin will set you back $390 (approx RM1,300), while the most advanced in the collection, the UCDeluxe, bumps that to almost $550 (approx RM1,750). [Electrolux via Appliancist]