I know some people like it, but please dont get an elite. It is very overpriced and is still a slim ecig. While the elite battery is better than other slim ecigs, its still only 380mah, which is low. And you still would only be able to use standard resistance attys and cartos, like your V2 and other slim ecigs.
For less than half the price of the elite you can get a bigger battery PV that is a LOT better, like a kGo, E-Power, or Riva. You can get a kGo or E-Power starter kit for under $45, and you can get a Riva starter kit for like $30-35. Their all 3.7V PVs and have alot better battery life and will give you a lot more options bc you can use standard resistance or low resistance attys and cartos.
The kGo has an 1100mah battery, the E-Power has a 1050mah battery, and Riva has a few different options for battery mah.
I use an E-Power and love it bc it uses non-proprietary batteries which are really cheap, but the kGo is also a really nice PV. Both of them have a battery that will last 3 times longer than the elite battery, and youd have the option to use low resistance attys/cartos, plus their about half the price of the elite.
The three PVs I mentioned all have 510 connections which is the most popular and gives you alot of options. The V2 cartos would fit on them since they have KR808 threading, but you can buy an adapter so you could use them if you really wanted to.
For now though I would just buy some blank KR808 cartos and fill them yourself. Its alot cheaper than buying prefilled and then youll be able to use the thousands of different juices available.
I really like BlueMist
vaping and I recommend checking them out. They have over 250 juices and really good prices, $5 for 10ml, $10 for 30ml. They have sample packs and you get to pick your own juices for a sample pack and I recommend getting a few so you can try bunch of juices for cheap. All their juices are made fresh and you can get them in either 80PG/20VG or 100%VG(I recommend 80/20). They also have extra flavor shots for .50 cents more and if ytou find a
juice you really like you can get a 180ml bottle for only $30, which is dirt cheap and an awesome deal.
You can find cheaper juice if you search around, but most likely it will be crappy juice from China. BlueMists juice is made fresh by-hand in PA, and they ship really fast. I think BlueMist is a great vendor for a new vaper bc they have such a huge variety of juices that you should def be able to find some that interest you. Also their considerably cheaper than a lot of other juice vendors, which is def a plus when your just starting out and want to try a bunch to find what you like.
Goodluck!