Use Cases and Deployment Scope
We are not a big web development shop but we occasionally do have new code that we need to test against OWASP type web application vulnerabilities. There are many tools that can do this. But most of them have a fairly decent rate of false positives. Also, they don't really help address the issues that they find. Acunetix has had a low false-positive rate for us. The developer reports provide a lot of contexts to help the people who need to fix the issues know what to fix.