Jonathon Goodyear on Rich vs. Browser Interfaces

Granted, browser applications still have their place for simple data entry applications, cross platform applications or websites for public consumption (among other things) there is just so much more that you can do with Windows Forms than with ASP.NET (even jumping through hoops). The deployment model for rich client applications is getting more and more streamlined and simple, so the arguments against them are beginning to dwindle.

Source: Rich Client or Browser Interface