I used to write a lot of classical ASP. The company I am working uses classical ASP as the main development platform for eight years.
Since most of the modules are developed in ASP, and the existing system too complicated than most of us expected, that's one of the reason
why we keep developing modules in classical ASP. Another main reason for using classical ASP is that, when we modified some pages and upload them
to the server, we don't reset the session data for the exiting users. That means, the users even alert the changes you've applied.
To me, classical ASP is a great development tools for maintaining a website 24x7. VBScript is the mostly used language in classical ASP due to
the reason that there is plenty of examples and resources found in the internet, the language is a good starting computer language too.