My cabinet is essentially divided in two because I made a 'shelf' underneath the control panel for it to sit on (and also to house a decased pc, which I may be reconsidering).
My panel hinges forward, but because there is no path from the coin door to the underside of the control panel, I used sliding bolt latches like you might find on a gate.
I used felt pads where the control panel touches the shelf, so I have to apply a little downward pressure before the latches will slide home.
This small amount of pressure keep the control panel rock solid and there is no movement or noise whatsoever.
Now, my shelf construction is unorthodox, but the felt padding idea would work with standard control panel catches too, preventing any play or noise.
I agree with the above opinion that Velcro is a cop-out method. Go with hinges and some kind of mechanical catches.