A new vacuum is an important purchase that should not be taken lightly. It simply is not good enough to go to your local K-Mart to buy whatever model is on the blue light special. Taking the time to research Vacuum Articles and read user reviews of different products will help you gain a comprehensive understanding of the different options you have for maintaining the tidiness of your home.
The problems you have with dirt and allergens should be reflected in your search for the right vacuum. Understand that there are rarely good models available for less than a hundred dollars, but also know spending more than a few thousand on one is just ridiculous. There is a large middle ground between ineffective and grotesquely expensive, and that is where you should look.
If you are sick of the tiresome toil that you get with a push vacuum, you may want to consider investigating the costs and benefits of a central system. Over ninety percent of the homes in America can be retrofitted to have one, and it will not cost you anymore than a couple thousand dollars to install. As an added bonus, it will increase the value of your house significantly.
The power unit is what you will look for primarily in a central system, and the criteria will be how much suction power you need based on the size of your home. A standard unit will cover any two or three bedroom house with a dining room, living room, and kitchen. Larger homes need more power since suction will be diminished from the furthest point from the power unit.