In building their website, Performance Products
achieved a gain of 70% in development time (& also 75%
in response time). It's good to track case studies with
actual numbers attached to it - of course, there'll be
skeptics, etc. but there is substantial benefit even if it
were half-true! Keep a portfolio of case studies, it'll help
sell .NET to your bosses and clients. The other point to
note is the business benefits it brings by deploying .NET
(increased sales in this case).