I have to agree with what everyone else has said here. The initial start up cost can get pretty crazy. I started out with a 510 model because I thought I wanted to have one that looked similar to a regular cigarette. However, I have since learned that it isn't as important as I thought it was in the beginning. I've spent somewhere around $200 on initial start up costs only because I wasn't sure what to buy and have ended up buying the wrong items. You can reduce your cost by figuring out for certain what you need before you order it. You'll really only need 2 eGO batteries if you go with them or probably 4 total 510 batteries if you decide to go that route only because the eGO batteries last a lot longer and will give you ample time to charge one while you are using the other one. I suggest 4 with the 510 models to allow for equipment failure. I initially bought 3 batteries for my 510 and one of them had to be returned because it never worked properly and took a while to get that all worked out. You'll probably want to have extra atomizers for your chosen model and somewhere around 30 ml of juice. You'd also be wise to buy them in small 5 ml quantities of various flavors so you can see what you like best. Well I think that's about all the advise I have and do apologize if I was rather long-winded.