Per Mary’s recommendation, I recently purchased a Shark Lift-Away Navigator vacuum.
A few weeks ago the vacuum began to lose suction because of a ripped hose. The company has a great 5-year warranty. The only caveat is that you can only use the warranty one time.
After checking around, I found that I could purchase a new hose for $35 on Amazon. Before buying the hose, I decided to try the trusty duct tape. It worked great! The vacuum has the same strong suction as before, and has delayed (or even eliminated) the need for a new hose.