the usual purchase pattern seems to be.
1-gas station or kiosk model-works Just long enough for you to figure out that you just might be able to do this.
2-Some variation of the EGO or similar "starter: kit- works well for a couple of months but you start eyeing all of the mods seen here and want to know what the fuss is about.
3- your head starts to hurt as you try to figure which mod to try first.
4.- eventually you find that perfect(or close) device that fits your needs perfectly.(this is when the savings can truly start.
Many of use are always trying something new, it has become a hobby for me. i have different mods for different situations. I have one for work, one for going out, one for sitting at home, one for the all day events(fairs and amusement parks). and i still buy a mod every few months just to try them to see where they can fit in my line up. the best part is if you try a good mod and don't care for it for whatever reason you can resell it on the classifieds and get anywhere from 60% to 150% of what you paid depending on what type it is and if it is in stock or not
Stick with it, there is ton of very knowledgeable people on this forum, we have all been on the exact same path that you are on now. ask as many questions as you need to. thats what we are here for.