Wait a sec... this is wild news to me. So you guys are saying I can buy a few ego T attys and empty cartridges and just use them on my ego batteries and it's just like ego tank? So i don't have to buy a whole new $65 ego tank system? That is wild, but not sure if i'm reading this right. Anyone done a comparison as to what works out cheaper in terms of consumption over a time period... the boge soft top cartomizers used on Ego system (original ego system) or the ego T cartridges and attys (with the ego battery, so i'm guessing that turns it into a tank)? I'd love to know if anyone has tried both and compared em cost wise. Oh, and how frequently do you go thru the ego T cartridges and attys? Thanks so much if anyone offers an opinion. BTW, I'm sooo glad i saw this thread! I was about 2 days away from buying a whole new tank system.