Raj,

>Yes, you are right. And when you look for jobs in PHP, 99% are 50K/annum and also short term projects.
>Most of the .net applications are hosted at the client site or on dedicated servers. .net applications are big.

There are several good shared-server .NET hosts, including www.brinkster.net and www.eraserver.net and several more.

>All the shopping cart applications are done using php which are small apps.

Rick Strahl has a good shopping cart app for .NET at www.west-wind.com.