No... you're comparing apples and oranges. The eVic without a tank is $35, the iStick
kit (which comes with a tank) is $37 and change. So you can't really compare those two. The comparable eVic kit with a tank is $45, so we're talking a difference of $8 between comparable items on that particular website. My $10 estimate was a general one... obviously different websites will vary on pricing.
eCig always seems to have the best prices among US sites, but there are many caveats...
#1: they do not accept returns unless the item is defective. So be prepared to like it, or break it and say it's defective

.
#2: they are HORRIBLE at keeping adequate stock. As a matter of fact, as of the writing of this post, they're out of the iStick 60, and they only have the eVic in one color. Hope you like Cyan!
#3: to respond to your question, their shipping is very unpredictable. You may want to upgrade to priority just to make sure you get it in 2-3 business days. When I ordered my VTC, it took eight freakin' days. I was furious, but at least I got it cheap.
I would get the Crown over the Atlantis. I don't have either but the Crown is VERY highly regarded around here... uses huge coils that deliver a lot of flavor. Fortunately, it appears to be in stock on eCig at this time... for now.
Best of luck, and buy something already!