Thanks for all the responses everyone !!! Some really good insights here.
I never though of smoking as boring, or exciting, it was just there. I suppose my V4L packages were exciting because it was all new. I haven't tried that many flavours really -though my stockpile of cartos has grown surprisingly large, it's because I don't like that many of them. Perhaps I am just fortunate to have found what I like and be able to sample around a bit.
I do place frequent orders, for a few reasons. Orders can take up to 3 weeks to get to me. I had 2 orders, placed 2 weeks apart, arrive on the same day. That's post & customs for you. If I order fortnightly, I can gently stock up on my favourite flavours rather than placing the occasional huge order. Have to remember also, due to vaping being a grey area here, ordering more than 3 months' supply is illegal, so regular small orders helps stay under that radar. Besides, sometimes those sales are too darned good to resist ! I've also recently come into some money, so after years of low income, I am able to splurge. Importantly, this has been an unprecedented period of the Australian $ being worth more than the US $, so it is the ideal time to stock up on anything I buy from the US. Our $ can be as low as .49c to the US$, if that happens again it'll make vaping prohibitively expensive.
I guess what's really happened here is what I said would never happen: Vaping became a hobby. I was never going to let it take over my life or be more than smoking was. But it did, and I'm glad it did. It really got me to the point where I can't see ever smoking again (while I can vape). Now I suppose I have to get over the "Christmas" effect of deliveries and move into a new phase of vaping.
Thanks everyone!