...I'm not going to disagree that shocks are expensive. They definitely are. But you MIGHT wanna talk to Shadowfox about how expensive it's going to be to cast a mold. Just sayin, you may be in for a bit of sticker shock there.
If you want a protective case for the MVS and don't care about having a TON of art, there's at least 2 other options available on Neo-Geo -- one's called "Neominibox" and is, as it sounds, a smaller cardboard box that fits MVS cases perfectly and closes up, kinda like the white cardboard boxes that PC video cards or hard drives come in. The other, I forget the name, but it's definitely the cheapest of the 3 - is basically just like an old VHS box, but sized for MVS cases. Both of them come with attractive spine labels, but no front/back art. MUCH cheaper though.