It’s not unreasonable of me to think that a tier 3 turret actually IS better than a tier 1 turret right? My point is that as long as this thing doesn’t cost more than it’s lesser versions, there’s no reason not to take it, which means the lower versions are a temporarily stepping stone while levelling and nothing more.
If the tier 3 turret does cost more than the rest (and I still think i will, and if not, it ought) then you can weigh it’s cost against it’s role in your build. Perhaps you indeed want a turret as a nice distraction tool, if that’s all you need then the tier 1 will suffice and you can spent coins you cut there on something else.
And the same goes for abilities that are obviously more powerful. If they don’t cost more than others then they become no-brainers and that’s what you want to avoid at all costs. Cookie cutter builds severely compromise the gameplay and replay value of a game.
