You can find the best upright vacuum cleaner for your needs and your budget quickly and easily by following a few steps. There are a myriad of upright vacuums out there but the following plan of action will help you quickly sift through them, narrow it down to the few that fit your needs and fall into your price range, then pick the best one out of those choices.
The first thing you need to do is to establish a budget. How much money are you willing to spend on an upright vacuum cleaner? Just to throw some numbers out there, good ones can be had for as little as $100. Some of the higher-end machines will cost you several hundred, but in my opinion, there is no reason to spend more than $1,000 -- despite what those people who sell them door-to-door may tell you.
The next thing to do is to make a list of "must have" and "would be nice" features. For example, do you need "ball" technology or "swivel steering" because there are many nooks and crannies within your house that are difficult to maneuver? If so, that is a "must have" feature. What about bagless technology? Specific settings for different carpet lengths? These are a few of the features you should consider and decide which ones you have to have, and which ones would be nice to have if you can find a unit with them that fits your budget.
Once you have your budget and your feature list complete, you can whittle down your list of potential upright vacuums by eliminating every option that doesn't, one, fit within your budget, and two, contain all of your "must have" features. When you have your group of upright vacuums in your budget range that contain all the features you have to have, you can start looking at your other list of features -- the list of features it would be nice to have but aren't essential. Whichever unit has either the most of those features or the most essential of those features is probably your choice.
A final thing to consider: the warranty. Upright vacuums generally have very, very good warranties, but you always want to make sure you know what the warranty is on the machine you are purchasing. My recommendation is to select a vacuum that has at least a two year warranty. Almost all of them have this. However, if you want to be extra careful and know you won't have to worry about issues for years to come, select one with a five year warranty, of which there are plenty.