Before you even look at a catalog, take two minutes to define the use case you're stocking for. Are these devices for travel, all-day, or occasional use? Jot down answers to these three questions:

• Who is the end user? Beginner or experienced?
• How often will they vape? Light, moderate, or heavy?
• Where will they use it? On the go, at home, or in social settings?

These answers shape every decision that follows. A heavy user needs a device with higher battery capacity, like the VERTEX-25K, while a traveler might prefer a compact model like the LINQ-SLIM. Getting this right at the start prevents mismatched inventory down the road.