Started with 2 Joye 510's, and 2 of the PCCs (LOL). Vaping off filled cartridges.
Started dripping shortly after that, and decided to look online for more options. Found this wonderful forum, which in retrospect has probably saved me a small fortune in experimentation. Got an eGo for me and my girlfriend shortly after. Continued dripping with the eGo for a good 7 months or so before trying out my first bottom feeder. Picked up a Reo Mini about a month ago. I loved it so much my girlfriend got one as a gift today from me.
Overall
2 Joye 510 kits w/ PCC's around $200
2 Ego kits around $160
2 Reo Mini's around $270
Misc batteries/atty's/tons of different liquids - $$?? No idea, probably somewhere around $500 or so.
Ultrasonic cleaner - $40
Pila Charger - $50
I'd estimate I've probably spent around $1500 or so, for a 2 person investment.
Overall, my girlfriend and I have been analog free for 18 months, and that is not anything I can put a price on. If I could go back in time, I would have started with a bottom feeder hands down. Best vaping experience I've had yet.
Next on my list is a 6v mod, looking into a Woodville or a Reo Grande. But that can wait

. I'm completely happy with my 3.7v solutions right now.