Yes it is because I can only wear one pair of socks and if he 1x price socks don’t cut it then 10x it is until we get to an acceptable level of comfort. Paying 1x for socks my kid won’t wear provides me 0 value where as paying 10x but having the kid wear them just means that this is how much socks cost.

As to why they are better the toe knit eliminated the seam and hard spot where cheap socks terminate. The fabric wicks moisture better and get material is less abrasive. The knit and fabric all add significant additional cost to the fabrication process. Look up some videos on you tube on how socks are made.

I've had many brands of socks, because I'm so picky.

Some brands are objectively much better, since they support my feet better, have no seams around the toe area that drives me nuts, wears better (my cheaper socks get holes in them in about a year), it breathes better, it reacts to moisture better, it stays up on my ankle better and doesn't slide down, it doesn't twist on my feet because it holds the shape better, and it's cushioned better among other things.