The power and dust collection requirements tend to be getting towards the bigger side of things for a drum sander as well. Most truly useful sizes are at least 240V if not three-phase.
You can crank out cutting boards like that with not much more than a bunch of clamps, a small drum sander, a miter saw, and a good vacuum cleaner - garage-friendly and under $2,000. The issue is the hours of manual labor you have to put into this, especially since people are not used to paying hundreds of dollars for a decorative cutting board.
There are custom cutting board businesses out there, but they just use a CNC mill to cut personalized shapes or messages in common stock. That's a larger capital investment but far less manual work.
Now drum sanders do take up space (though mine is on wheels and can roll to the side when not in use), and aren't the easiest machines to use and maintain. But when it comes to cutting boards it vastly reduces the labor. Most of the time is just waiting for the glue to dry.