"But I Don't Have Enough Money!"

[Bugbear]

I was quoting Scotus, and referring to his post, but, since you brought Tartan into it.
Clan Tartan has no historical basis in tradition, either.
I won't argue that point too strongly, I realize that now they are identified with clans. Wasn't always the case that all members of the clan wore the same tartan, or even tartan at all. Solid colors and tweed were also worn.
That said, I see nothing wrong with wearing a 4 or 5 yard kilt, solid, tartan tweed or otherwise. It is true quality of material and construction will matter-
Yardage doesn't matter, tartan doesn't matter per say either.

Ya, my tartan is not a clan tartan and was designed in this century, though designed by a Scot. It does seem to be hinted at that one would be saving up for One kilt, and it follows that one would need to have decided on a single tartan. I feel somewhat about my tartan as if it were like a clan tartan so it is easy for me to decide that. Others might want to wear several tartans, both clan and non-clan, and it follows that several kilts would be required.

As to the box pleat VS eight yard, I jumped in because I brought up the subject in the second post... almost as a suggestion or alternative. It is the construction and type of material used that is important in the kilt, as you say.