Many people don't realize how important it is to have equipment that allow you to be able to test and fix any equipment or gizmos in your home.  I personally have had to fix countless home appliances and electronics and the single most important tool for these repairs are multimeters.  If you plan on doing these types of repairs then you definitely need one.  I recommend you take a look at http://multimeterhq.com/ and you will find all the reviews you might need to make an informed decision.