It is always possible to combine a lengthy feature list and really good sound quality, and it's always cool when it happens, too. But I think JT Clark's point is that (and pardon me while I state the obvious ) a feature list alone does not make a product great. In fact, beefing up the feature list can sometimes take attention and resources away from the sound quality. People also may tend to decide which product is better because Model "A" has an extra gadget that Model "B" lacks, even if Model "B" may be superior in some other way.

A truly great audio product has an appropriately broad range of features to satisfy the demands placed on it plus great sound.