Personally I like to have the option of viewing websites that use Flash, just in case I encounter any reliant functionality.
A dependence on this type of front-end technology is usually pretty poor in terms of Web Design and Accessibility, but if you urgently need to use a particular site and don't have access to an alternative device at the time then it can be quite inconvenient.
Other than that though, lack of Flash really wouldn't bother me ;-)