The vaping equipment vendors would like you to keep buying as much as possible. They know you spent a lot on smoking and count on you giving them all of that, every month. Giving them a little more would be even better. Lots of new products will be coming along to help separate you from your money. If you liked having a lot of toys as a kid, you will love vaping.
You don't need that much to quit smoking and switch to vaping. I have a friend who quit with a volt. Over a year later, he is still using the Volt and doing just fine.
I smoked a pack and a half a day for thirty five years. I quit using an E-Power 14650. I'm still using it and have some more for back-ups if needed. I've been using the E-Power 14650 for just over a year and smoked my last cigarette seven months ago.
Am I going to upgrade? Nope. This APV works fine for me and the replacement batteries are very inexpensive. I like LR cartos. No, I don't want a Provari or any other large APV. They are too big and clumsy for me. I'm an active person and need an APV that travels along in my pocket comfortably.
My vaping expenses are about 20% of what I spent for smoking.