A few years ago, we were having trouble with the suction power of our vacuum. Since we have pets vacuum suction is vital to cleaning our house. We began the search for a new vacuum. We ended up selecting a bag-less variety, because after adding in the cost of bags for other models, we realized that purchasing a bag-less model that was a little more expensive initially would save us money in the long run. Not only saving us money, but keeping those bags out of the landfill saving our environment as well.