From a customer:

"AS A WINDOWS USER THE FACT THAT I CANT RIGHT CLICK MAKES ME FEEL “DISABLED", IM ONLY USING SOME OF MY SKILL SET. THE DIFFERENCE BETWEEN A BROWSER BASED APP AND A CLIENT APP IS THAT A BROWSER BASED APP FEELS WATERED DOWN. I’LL INVEST THE TIME TO INSTALL SOMETHING BECAUSE IT PROVIDES SOME ADDITIONAL FUNCTIONALITY."