I saw on their website that they sell 4 pack atomizers. So, my understanding is that I should save the tank and pitch the atomizer? It just seems weird to purchase a tank and purchase separate atomizers.
It's actually more simple than it seems. IF they are selling throwaway clearomisers (the tanks) then buying them is an unnecessary waste of money. They will work, and it's all cheaper than smoking, but the value for money is almost certainly bad.
In the UK (so it may be different elsewhere) a disposable clearomiser is about £3.00. A rebuildable one (this is NOT a proper rebuildable atomizer, which is different...) is £4. The replacement atomizer section/part is £1.00
I notice Vapin plus charge $9.99 for one clearomiser. It doesn't state if you can replace the atomizer section, but presumably you can't.
So, it they last a week, it's going to cost you $500 a year. If you buy a few rebuildable clearomizers and change the head, that would be around $100 instead.
I would say, on financial grounds, they are pretty bad then.
