That makes a whole lot of sense actually. Assuming they keep running these as long as they're in demand (within reason), then the idea of being able to go into a showroom, try one out, poke around under the playfield, and then buy one is really appealing. The real question is how big a batch do they have to order parts in? Given setup/changeovers for making cabinets/playfields, ramps, etc, it's probably a case that there's a minimum batch size that makes sense. It means you may not be able to walk into Playdium and walk out with a game, but you may be able to reserve to get in on the next batch, and then once they reach critical mass, they'll do a run.
Either way, it's exciting times, and it should start making a bunch of these games much more available. CC and AFM are probably the next logical games to do after this.