I have both a VAMO and an eVic so here's my compare and contrast take:
The VAMO is good and will get you where you need to go. What it does it does well. The three operation modes - 18650, mini 18350 and stacked 18350 are nice and flexible. But: Don't get anything but stainless. The chrome finishes will begin wearing through in a matter of weeks. It's long, it's heavy and it's slippery. No matter what ridges or not built onto any given model, it's a pain to hold onto. Don't stand it upright - it's top heavy and will fall over.
Crossing over here - the VAMO is a tad over one inch longer than the eVic. The eVic immediately becomes more user friendly right there.
I'm a tech junkie. To me the fact that the eVic is firmware upgradeable and user programmable is a sell right there. With the last firmware release you can pretty much customize the display to show what you want, any place you want. The last release allows you to invert the display too.
You can also create 3 custom VW and 1 custom VV operating modes. Start your power at 9 watts for 2 seconds, drop it to 8.2 watts for 4 seconds, finish at 7.5 watts - stuff like that. There is a web site link provided at Joyetech where you can share and download custom vape "recipes" like these.
I get what people have said out the pre-programmed modes having a "soft" start. No - an eVic doesn't hit you over the head the split second you fire it. No problem - use the Auto mode. Wha...? Auto mode? It's not what you think. If you put it in Auto mode you can set the number of seconds it automatically runs for. Set it for an 8 second vape, and don't start drawing on it until after two seconds. You hit the fire button and release, the display is gonna count up the number of seconds it's been firing so when see two seconds have elapsed - start vaping.
To override the Auto mode just push and hold the fire button as per usual.
This thing has a boat load of features. I haven't even touched on how it vapes. It's still a version of PWM, but it's running a lot higher than the usual 33 Hz PWM - no rattlesnake effect and a very smooth vape.
I got's mine in the classifieds for 60 bucks - V1 head, three battery tubes, two top rings, two batteries. They do show up on occasion, but youse guys need to get verified in order to access the classys. =>
http://www.e-cigarette-forum.com/forum/site-feedback-help/305495-verified-member-explained-more-detail-faq-included.html
Off hand, a couple other places I know selling them are Cignot and Good Prophets. Good Prophets has the 18350 battery tubes as well in black and silver.