I'd wanna open up a Vape lounge with a library inside, and a soundproof room in the back for gamers. We'd serve food and nonalcoholic beverages. I'd apply for authorized retailership from every company out there, and have a selection so large that I'd have to have a second venue next door just for my
mods and attys. the first store would sell basically just juices and we'd have staff members strictly dedicated to helping people reach the Vape they want by showing them new builds, or helping them perfect their own style of
vaping. I'd have a section just for cloud chasers and one just for tootle puffers, and everything in between. Then I'd sell everything at cost+10% so I could be the cheapest vendor around and help everyone save some money.
Addendum - Straight up, this is my retirement dream if I ever hit the lottery or make 7 figures.