Vapowire is a semi-recently formed subsidiary of Temco, a certified manufacturer of Sandvik Kanthal A1 and other heating element wires. Done to separate the
vaping side of the market from the industrial side... the Vapowire product is a more refined, "top shelf" version of A1. If you've not visited the site yet, here's a
bit of reading on the subject.
Look at it this way... IMO - some buy genuine atomizers and some don't. Some will buy
any wire that says Kanthal in the eBay listing - even though it's the worst Chinese crap made (sound familiar?) - and some will take the steps required to insure they're getting real Temco Kanthal (in the US).
Those that are more inclined to buy genuine rebuildables will think nothing of buying the best Kanthal they can get, and even those that buy clones may be willing to spend the modest up-charge to experience the higher quality wire.
Do you have the latter kind of customers? If so, then you should have sufficient sales to support keeping Vapowire in inventory.