I'm a bit of a noob to the ecig like vape pens. Looked at them some last time i was in the smoke shop. Are they only for using with flavored oils/extracts cartridges? Do any work with wax concentrates? Are these what the kids are calling dabs? All I really have heard is most 'vape pens' do not do flower w/o burning them easily. I'm considering trying a disposable vape pen from the store just to get a better idea how they work and what they do and whats 'inside'. But there seem to be so many variations and not sure if they all do or use the same material (ie wax/oil carts/etc)? Can the oil be created in the home, or is there some sophisticated extraction method required like BHO? I'd rather not have to rely on the store for some special product is all. I have no interest in flavored vapor or nicotine, this would ONLY be for cannabis products. Not looking for suggestions, just more info/details, how they work, what they do, and that sort.