wv2win
I looked at some of the devices you listed I just can't seem to justify the initial cost, but obviously I've never experienced one. Most of them are $100+ and look awful!
And this is why I rarely recommend "mod" type e-cigs to those new to vaping.
Don't get me wrong . . . in my opinion, the vape provided by a mod (and by "mod," I mean a higher voltage e-cig that doesn't look like an e-cig) is substantially better than the vape provided by e-cigs that are smaller and look more cigarette-like. The higher voltage provides a strong throat hit, and the batteries will last a good long while as compared to the smaller e-cigs.
But, yeah, they look weird. When I first started vaping, it was hard enough to vape in public with something that looked like a pen. I think I would have had a very hard time indeed vaping my Screwdriver in public in the beginning.
But a funny thing happens after you've been vaping for awhile . . . you start to care a heck of a lot less about the look and a whole lot more about the performance. And you get to the point where $100+ doesn't seem at all unreasonable to pay for something that works, works well, and works consistently. (Or, if you're at all handy, you can make a mod--there are some amazing folks on this board who have generously provided instructions for making some pretty cool, very inexpensive mods.)
But you usually don't get there overnight. It's a process. I hope I don't come across as kind of snobby, because that's not my intention at all. I'm just saying that when I first started vaping, part of what eased the transition was having something that kind of sort of looked cigarette like, and I didn't want to vape with a box or a hand tool.

Nothing wrong with that.
So my recommendation for those new to vaping is generally the 510. It's a nice e-cig with a powerful punch in a small package. The battery life isn't exactly great, but with a PCC (portable charging case), you can easily charge batteries on the go. And if you get a USB passthrough battery, you can vape away at a computer without worrying about battery life at all. (And if you don't want to be tethered to a computer, you can always get an adapter for your USB passthrough and plug it into a wall outlet, or you can buy a portable battery pack and use your USB passthrough with that.)
The 510 was my first e-cig, and I credit it with getting a 30-year, 2+ pack a day monkey off my back.