Well, I spent exactly 600 dollars.. give or take a couple dollars on shipping and handling. That's after I sold all my other e-cigs, so in reality, I spent over 700 dollars easy.
Right now, I have a SD, 7 CR123 rechageables, 3 chargers, 8 atomizers (1 might be dead though - but I"ll see if I can revive), and little over 100ml of
juice. My final piece of equipment for the foreseeable future will be a 901 pass-through from puresmoker, as I already have Kensington Power Pack, and it will serve me as my backup... so that's another 30 some dollars down. (Haven't put any order down, as I don't really like pre-ordering.
However, unelss my SD breaks down, I don't see any reason that I'm buying anything else. Not to boast the SD or whatnot - but I think it's important to find your own main e-cig, something you can stick to for a long time - if you intend to save money from this new habbit.
Well, I've been off analogs for exactly 50 days today, and I've saved around 2-300 dollars. Another 50 days or so, I'll start saving, although It's probaly more likely that I'll start saving in 100 days or so, because of the cost of juice.
So find a e-cig and stick to it. 510 might be a good one to do so. There always will be a slightly better performing one in the future. But if you stick to your equipments for at least a year, you'll save some money.