The fact of the matter is that if you have invested your life into your craft through practice, lessons, workshops, education and years of development then no matter the situation you are always playing underneath your value. A gig economy is based on the venues in your region and your ability to put butts in the seats. If you can charge more and get it then it’s a win. In my opinion great songs always win. Original or cover doesn’t matter, especially if you’re filling the room with people.