Everyone is looking to save a buck. By switching to e-cigs over normal analog cigarettes, there is lots of money to be saved... but why not push it a little further?
Some companies charge $20 for a 30ml bottle of best e-Juice, and though this is a much cheaper option than cigarettes - good and cheaper e-Juice can be had for much less!
Some places, such as Utah Outcast give you twice the liquid for the same price. Other places are only $15 for 30ml. I would not spend more than that, because the quality of juice becomes questionable.
I recommend getting yourself a bottle of Gold Rush to start. It's a great tobacco alternative and a 60ml bottle is only $21 and if you add another $9 for a total of $30 you get free shipping!
Heck of a deal!