You can get a Nemesis clone for 10 or 15 bucks, and it is a very good "first tube" to learn on. Also buy the switch magnets for a couple of bucks and replace the spring. I have 4 or 5 of them in different finishes and I still use them all the time. More importantly than the tube, buy good batteries, preferably Sony VTC4s from a reputable dealer. Don't coil it below .5, which is not a problem since its best vape for cloud + flavor will hit berween .5 and .7 ohms.