I've talked privately with owners and there are some great sales that went unreported publicly for Keyword+Jobs domains. Even so, there is already a good enough number out there publicly to show the value:
There's a reason these types of "jobs" names sell well. They're top of mind for customers and have more authority than any other brand you could use. This inherent trust and credibility from the MarijuanaJobs.com domain would help increase conversions and revenue.