Build business apps in .NET - not HTML or JavaScript

Unsurprisingly all the answers here are from the Python and Ruby community folk. Have a look on a Job board for LoB apps that require those two languages and you'll get a shock.

You choose .NET or Java or C++ for the real world apps that large businesses use to talk to other large businesses. The reason is these companies (minus banks perhaps) all run Windows, with Active Directory and all use Outlook and Exchange.

Design agencies producing iPhone apps and websites don't use those technologies and get monkeys to produce HTML and JS.

0 click install seems to be a pretty good feature to me, you don't have to carry around an .exe file. You can make your web app run as fast as your native app, if most of the data processing happens on a central server anyway.

Of course you can provide more sugar with native apps, no doubt about it, but nowadays web apps can be pretty good, there are exceptionally good tools out there and portability of your app is a really good selling point.