I bought my first liter of 100mg/ml nic back in 2013 and have seven liters now one of which is cracked open for use. I'm not real sure how long this will last me if it's just me vaping but my son vapes now as well so it may need to last for us both and for anyone else we may meet that'll need it. In any case, lots of nic so we should be good for a good long time. I also have several thousand ml's of vendor juices. I panicked when the Indiana regs went into affect. Vendor juices will get used up first of course and that will add another few years to my time for being stocked. Gear wise I'm good, I have all I need and I'm married to a machinist so he can help me out when I find myself in a jam.