You mean like AutoCAD was killed by all the other CAD packages with a more conventional language? I'd like to see such a counterexample. Lisp is only killed by managers who are afraid to hire cheap labour. Like yahoo and their store.
What language is AutoCAD written in? And what percentage of successful products and projects use LISP? That's what I mean. It's the status quo of where LISP is in the marketplace. It's you that have to provide dozens to thousands of counterexampes to even illustrate a trend. They're not there.
Whereas companies adopting PHP, Python, Ruby, Lua, and so on have no time finding help, libraries, or customers. Because they're mainstream and attract such people. See the difference now?