Reasons not to use MVC architecture for web application

Question

In the past I have primarily built all my web applications using an N-tier architecture, implementing the BLL and DAL layers. Recently, I have started doing some RoR development

Answer 1

The only drawback we've had is that MVC pushes you toward a html/javascript interface where rich internet applications become more difficult. For example if you want to present the user with a calendar control, you may need to roll your own since you can't drop one on from the toolbox. That said, MVC is great. When we really need RIA applications we use MVVM and Silverlight.