Vicki, you will be soo much happier with a 510 or Ego systems (and both have interchangeable parts), than that Joye Ego. Don;t give up on ecigs! As Rosa mentioned, you can refill those NJoys with juice, as you wait a bit for whatever system you buy, to come in the mail. Or you can spend the $20 for 5 cartridges at a 7-11, to hold you over until you new kit arrives. True, those cartridges are overpriced, but better than going back to smoking. I'm in New Jersey about once a month, and just about every 7-11 has them. When you get into and Ego or 510 system, refills will be so much cheaper.