For a while now, it was hard to beat the combination of price, power and features on the VAMO. That's just not the case anymore. There are many variable voltage/variable power mods out there now in the $50 range. My wife likes the CVI V1, as an example, in red. The VAMO only comes in chrome(s) and stainless. From what I can tell, and I have both, they operate almost identically. The VAMO is heavier, but the CVI is lighter...your preference to choose. Lately, say in the last few months, the market has been flooded with clones, knockoffs, upgraded versions of many, many similar devices all within say 25% or so. The fact is that the VAMO is excellent, but it's not alone any more and there are enough differences out there now to make buying one a research project now.
To answer the previous question from LeslieA13, yes variable voltage cannot only give you more and better vapor, but better flavor as well. Variable power has the advantage of allowing multiple topper changes without having to substantially change the voltage every time you make a change, as I do throughout the day. The mod devices all mostly come with an Ohm meter built in, important for dialing in the best vape. Way better battery life generally two to four times as much. Battery changes mean you can carry an extra battery and don't have to recharge the eGo, providing ease of use. The devices that allow both 510 and ego threading work best for me, but adapters are available converting the 510 to ego threading for toppers like the evod, etc.....a very popular delivery device these days. Tank systems tend to work a bit better on the bigger mods as they become top heavy on the ego's. The combination of Ego, glass Protank and granite counter top has caused a brutal death for two of my Protanks, and one eVic. The other eVic died on concrete.
Anyway, ego's are and always will be around for me, even if my daily vape is with one of the bigger mods. Compare the VAMO to other mod APV's and not the eGo. They are very different. Good luck!