Keep it and use it as a tool to grow your income in other areas. Maybe a YouTube channel? Who knows what opportunities you might get. Maybe you’ll get invited to special tech events where you can network with other people. Even for job interviews in the future, if you can point out that you manage one of the largest tech accounts, that’s a big plus. It could be a great asset in the future. Ultimately, if you have something better, you can invest $15,000 and make it 100%. If not, then keep doing what you’re doing and use it as a tool to grow other side businesses. You can always sell afterwards.