Hey guys, I haven't been on the forums in a while. since my Vapor Shark dna 30 bit the dust several months ago, I am looking to get another box mod. I am wanting to get into temp control and Nickel builds, and my question is, "What is the difference between the 40 and the 200?". I am not wanting to spend over 150.00 unless I have to, which is why I am leaning towards and dna 40 device instead of a 200, unless the 200 has some amazing features.