Sure, they should take care how they spend their money, and IFC mall is probably a little over the top. I wasn't thinking of superchargers, merely the showroom itself. It doesn't have to be much bigger than having room for 2-3 cars, and then merchandise, posters, interactive screens and so on. Obviously, the store needs to be located so cars can get in and out as needed!
The reason I thought of it was some days ago when I was in the IFC mall, I thought it would have been nice with a Tesla store there. I have been to Tesla stores in Florida and California, and they were really placed in high end markets. This is a high contrast to most fossil fuel car dealers, as they are usually grouped in industrial areas outside city centres.
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When you click "buy" it gives you that possibility. Note, that some of the options (paint colour, interior, sunroof, wheels and so on), need to be activated separately. Find these groups below the photo of the car, but above the options.
Optional back seats cannot (yet?) be selected for Hong Kong Tesla model S, as it seems there is some Transportation Department red tape in the way.