IMO, stop thinking about it and start doing it so you don't have the level of regret that I do! I was on a solid $45 per week rotation for juice on average, so that's $2,340 per year on just juice if I were to keep up with that. Now that I DIY, I haven't set foot in a vape shop to purchase anything in over a year and I spend less than $300 a year making my own juice(That's for everything, supplies, nicotine, VG, bottles, etc) Really I was kicking myself when I added that all up the first time, I enjoy making the juice and I truly enjoy my own DIY juice that I can cater to my own tastes so much more than anything off the shelf, as a bonus I save over $2,000 a year.