Well, unless you too were planning on molding some sorta fiberglass cab like this, there's no way it could possibly be cheaper. Just counting the wood and screws, a normal MDF/particle board cabinet doesn't have but about $50 wortha material in it. Another $20 for paint. T-molding, marquee light, plus acrylic for monitor glass & marquee and you've got the equivelent empty shell ready for electronics and you're still under the $130.00 starting price. Before shipping.
Not that this thing isn't sorta cool. Donno if I'd want one for myself, but I do like it.