I think it's important to bear in mind that we, as ECF'ers, may not reflect the actual or potential e-cig-using population. I suspect a B&M seller is probably smarter to keep a fairly limited, somewhat vanilla, product line for the many smokers who are motivated enough to seek out e-cigs but not avid enough to spend a lot of time on an online forum or otherwise seeking out the perfect product. Looking at my own PV right now, I see a battery box and batteries bought from one vendor, an adapter from another, a tank from a third, a cartomizer from a fourth, a drip tip from a fifth, and DIY liquid made from the products of at least three more vendors. The many who are used to "Give me two packs or Marlboro Lights" may prefer the simplicity of a basic product lineup (and might well find the Provari too heavy). That lineup may work fine for them, even if it doesn't do much for me, you, or most who hang out at ECF.