I voted Yes, and I'll tell you why...
First of all, when you want open a physical twisty puzzle store your aim would be to sell to the general public. Don't even think that you will get more than 5% of your customers to be speedcubers or someone with cube knowledge. The good part about this is, if you teach people or get them interested in speedcubing they might come back and buy more, thus expanding the market and popularity of speedcubing.
There are A LOT of downsides to opening one though. You HAVE to do extensive planning (write a business plan). Another think you will have to research is what you can sell legally. When my physical store was open I was at risk for Seventowns finding out that I was selling KO 3x3's (all speed 3x3's pretty much).
Here's a list of things you will need:
1. Business Plan (I suggest you have a professional from SBA look at your plan before you do anything else)
2. Be 18 or older
3. State tax sales license, or business license (Even online stores need to pay state taxes... this includes personal income tax)
4. City tax sales license (for physical store only)
5. Business insurance
6. Research EVERYTHING about the location where you want to open.
I had to close my physical store because I didn't do enough of #6.
anyway it is a good idea to open a physical store, but you just need to be very aware of business readiness. In a few years I will have multiple kiosks in the US. So when that time comes I will be hiring.
