Agreed, sample size defines a lot and of course similar switches are harder to tell apart, this goes to any similar things not just switch. I think another aspect that differs hobbyists and none hobbyists though, is the ability to identify the difference on top of noticing the difference, and further more know how to modify a certain part to maximize or minimize such difference. So like everyone could tell switch A is scratchier than switch B just from pressing it, but us would know that is material and lube related… or that they would think switch A make a more pleasant sound than switch B, and us would know how to tune the sound from different case/plate/foam/pad/lube etc. Now that I said this, I feel like a hobby, any hobby, is truly an art of themselves… the more time we spend in it, the more time we see things other people don’t