Started with an Ego Twist 1000, clearo, ego atty. Then got a Provari. Then a passthrough when I had both my others went out the same week. Went to Vivi's very quick as I hate the EGO atty and didn't like the clearo much better. Now I have the Replacement Provari under warranty, A Vamo v2, Zmaz v3 flat top telescoping, a #19 mechanical and K101 mechanical. The Viv's are retired to my backup stuff. Now use mostly Protanks and Davide Glassomerizers but I have some rba's and rda's. Love my Igo-W have an L on order. I DIY and have about a liter of 100mg/ml base. 250ml of PG base. .5liters of VG. More flavorings I can keep up with. Rebuilduilding supplies two types of SS mesh, Ceramic, 1-3mm silica including ekowool, 30, 32, 34 ga kanthal, .4 and .5 ml ribbon wire. Added some tools for rebuilding. I'm not quite sure when it became a hobby but I can tell you it would have been cheaper if it had not. Never would have imagined 1 year.