I've now got a pretty good idea of what works best for me, but I'm still really attracted by shiny...pretty...I use all my batteries regularly. The thing I seem to have most of is e-liquid...
Let me see:
1 MVP, which I really like.
1 iTaste V.2 - great
1 iTaste v.3 - great
2 ego c s for outside the house. Very satisfactory.
1 little ego 650 that I started with.
Then:
1 Vision Aurora/Infinity for happy evenings. It's a really good experience.
3 ProTank 1s
1 ProTank 2
1 iClear30
2 mini Evods
1 T4
2 KWX6
1 X9
a small number of really nice-quality CE4s that go out of the house all the time on the ego-Cs. Practical, sturdy and immensely portable.
I'm seriously considering an SVD, have another Ego-C in the post as a further backup, and have ordered some CE5+ to try. If and when FT gets the MVP v.2, I'll most likely get it. My present MVP is really sturdy and useful. Also charges other stuff, which is cool.
No desire whatsoever to do anything more complicated than change heating coils. No rebuilding, fooling around with wicks, coils or ohms. I might get myself a Bagua clone only because it's pretty, not because mech mods interest me at all.