I don't think there's anything "wrong" with nearly any license. If your project has been written without including other open-source components, feel free to license it under whichever license you choose. Closed-source commercial licensing is an option, and might be the best option if you're actually expecting to make a living from the code in question.

Just don't be surprised when the community doesn't respond well when you take an open-license project, accept unpaid contributions from others, and later convert it to a non-open license to pay nobody other than yourself.