The thing is, "frankenstein asp" (and PHP) are so damn easy. Yeah it mixes presentation with logic and after a point it all gets really messy but on the other hand everything about a page is right there and you don't need to do any builds and you can code in notepad and deploy with xcopy/rsync.

Before rich client/ajax took off, it was more than adequate for most e-commerce, web publishing, and internal administrative applications. Truth be told, it still is, but it's just soooo 2001.