At 200 bucks a license there isn't going to be more than a couple people who are ready to answer stack overflow questions about this, there isn't going to be a good plugin to most IDEs, the tooling support is going to be poor in general and there is going to be libraries for approximately nothing (yes I know, it takes a lot less time to write them in Lisp, but it still means you need to dive into the Oauth spec to work with Twitter, whereas I can just download a library for Java that
works).
I say this as a huge fan of Lisp and there was a time where it made sense to buy a commercial compiler - that time has passed, because when you buy a compiler and a new language you are also buying into an ecosystem, and the more people that are in that ecosystem the better for you.
I can see maybe using Lisp to do some special parts of the program, but even then there is Chicken Scheme which is free and already have a bunch of eggs (extensions), oh and it compiles to C too.