This is an interesting question. There are a lot of things to consider here:
What kind of teleportation device is it? Is there a distance limit? Can it teleport humans or could it teleport things only? We want to define the product and it’s uses so this is fairly important to answer.
I’m going to assume this product can teleport a person maybe across all distances but requires a “device” on both ends. So very similar to a Star Trek teleportation device. So this product is meant to save time in travel times maybe between airports and distances. In this sense, this teleportation device will mainly be purchased by companies that would operate these services as we may still want to enforce laws on cross border travel. Very rich people can still purchase this item, but legally they can only teleport within the country. Also, you can teleport up to five people at a time and travel time would be instantaneous. While you can teleport items as well, I am going to focus on teleportation as it relates to humans traveling great distances.
The price of the teleportation device will be compared to traveling through conventional means like a plane and the time saved. Because there are no real competitors on the market, we can upsell it and focus on a core group of more wealthy users before we bring it downmarket to the common masses. For upmarket sales, a first class ticket, or a private plane ride can get upwards of $10,000 per trip. This helps subsidize the investment in planes and in gas costs. If we say that everyday, there are 1000 people willing to spend on average $5,000 per trip, and with the time savings, we can upsell it to $20,000 per trip than the teleporter can make upwards of $20 million a day or $7.3 billion a year industry. I will also assume that maybe you have to take a 75% haircut because of interest and costs and that a company will look to pay down their costs within 5 years and that there are 20 companies that are interested in this system, than we can price the teleporter at $7.3*.75*5*1/20 or about ~1.5 billion per dual devices. (depending on the actual costs to manufacture the system). There are a lot of other considerations too like within country travels, this is just a pure estimation exercise.
Because this is a new and exciting invention, it should be fairly simple to promote through social media, through news reports. Every legitimate news organization will be at your doorstep looking to understand how the product works. I don’t think you really need to market it actively until the product has competitors. Perhaps, have a conference where the product is demo’d and make sure that the company is focused on safety and regulatory approval with governments around the world.
The place I would market this product is most likely through a website. Since I imagine most purchasers would be B2B and some of the most richest people in the world, it doesn’t make sense to have a store front. I would focus my energies on having a customer team and a sales team that can field these calls. Perhaps have some demos and most aviary trade shows. I woudl also have a team that can help people understand how to integrate this system into their airport or smaller business.
In summary, I would organically market this product. Being a new invention, marketing through news channels would be the best bet in getting the word out. I would price it high initially because most of the customers would probably be big airports, smaller aviation facilities, and probably the top 1%. I would sell all my products in a bespoke way with a full consulting team that will go to your facility to figure out how to integrate the system directly. I would also focus on having positive PR and gain regulatory approval from the government.