After reading your post I did some math and guess what?! You aren't just gonna notice that you aren't coughing up rubber balls in the mornings and that people ask you about what kind perfume you are wearing (rather than opening up the window behind them upon your arrival). You will save money big time after just a few weeks:
Curiosity got the better of me and I pulled the receipt for all the gadgets and goodies I bought to entertain the hobby since I quit the analogs 8 weeks ago (well, okay, I'm about 9 hours shy from exactly 8 weeks): $305.18. That includes four Joye 510 Mega sets with 2 wall/usb chargers, 1 PCC, 15 cartos, 20 cartridges and 210 ml total ejuice, flavorings, 10 5ml bottles and little gadgets to simplify e-cig life like little syringes, etc.
In comparison, I smoked an average of 1.5 packs B&H. The cheapest place around here sells them for 6.47/pack. So I would have spend during that same time frame for analogs: $566.16.
Hang on to your receipts and calculate saving/spending in another 2 weeks from now. I think you'll be in for a very pleasant surprise.