There are competing products. I've not tried them. I thought Dyson was overpriced hype for years but finally got one and it really is a damn good vacuum cleaner. You can read reviews at Amazon and they are not quite as gushing, but I know a few people with Dysons and all go wet in their panties over them. I know some other companies have cyclone-type vacuums now, though, and much cheaper. They may be good. I had a part go bad on my dyson just recently. It was two years old. I called customer service, gave them nothing but the model and the serial, and they shipped out a new part no questions asked, no cost to me. Me like!
This isn't to say Dyson is flawless. I think their air blade hand drying system is a piece of steaming horse shit.