Got 1 MVP2 from 101vape, at the time they only had the black, but was cheap and fast shipping, then I wanted a blue MVP2, I got the blue for about the same price and the new 6 rivet v3 from ebay, search vapingtown2013 there, has high ratings, I got them both as quick as 101vape and both have worked great, the seller been around a long time, so think if had any problems, be happy to help.
I know someone who had problems from with their v3 that they bought from a online US vendor, and had tons of hassle getting it replaced and had to pay for it being shipped back, don't count on being safe with a warrenty just because it's a online store