This restriction is in place to preserve air quality, avoid aggravating other passengers, and eliminate potential fire threats
If you are a business owner in the vaping industry, you can ship such products to customers via a limited number of carriers (which, sadly, does not include the USPS, UPS and FedEx), as long as you adhere to all the rules and regulations, but you probably already know that.
"[Lavrov] reached for a Marlboro whenever he could and enjoyed a glass of Scotch whisky," Evelyn Leopold, a former Reuters UN correspondent, told the Moscow Times
Store selection can vary, certain products may be out of stock, and prices often differ depending on where you shop
So if you were planning on going to Tiffanys tomorrow, you probably wont get a table