To be fair, neither do I, but that's not the biggest problem I see.
If it took 15 seconds, or even five minutes, to 3d-print a model like that on a desktop machine, then sure, there might be something here. But the Stratasys J750 production printer that Shapeways uses for multicolor prints [0] requires, per its user manual [1], "between several hours to several days" to complete a print, depending on size. It also weighs half a ton, needs a room and about 3 kilowatts to itself, and those are where its environment requirements start [2] - not to mention that the uncured printing materials appear to be quite toxic, judging by the bulk of safety, first aid, and hazardous materials handling discussion in the user manual. And that manual is what you're meant to use as an aide-memoire after being trained by a Stratasys field engineer in how to operate the machine at all.
The machine is apparently designed mainly to print anatomical models accurate enough for surgeons to practice on them, and in that context its engineering requirements are reasonable. They're also reasonable for a company like Shapeways, which entirely revolves around 3D printing and can arrange its physical plant to suit. I won't even say it's impossible to cram something like this into a strip mall, but it'd probably need to be next door to an outpatient MRI clinic or something like that, to get the services it needs without the cost and permitting of having the runs put in - you'd have to pick the site to suit the process, and GameStop locations aren't picked that way. And even after all that, the print time is still a killer.
In theory, sure, it would make sense. But in practice the tech just isn't there yet. About all that leaves, I think, would be "BOPIS for Shapeways", and I doubt that'd be a big enough draw to be worth the trouble - at that point, it probably makes more sense for the studios to do something like Hero Forge, and cut GameStop out entirely.
[0] https://www.shapeways.com/materials/multi-color-polyjet
[1] https://www.stratasys.com/-/media/files/documentation/polyje...
[2] https://www.stratasys.com/-/media/files/printer-spec-sheets/...