In the end, decisions like this come down to what an individual can live with.

As to a kilt - if you don't tell anyone what the tartan is, they will not know. Even if they ask, you can tell them anything you like and they won't know.

Take any tartan. Each mill has its own shade for any given colour. Add in all the permutations as to ancient, muted, modern and you get a vast range of tartans - all the same threadcount (so they are the same tartan), but all different. The vast majority of people will never know one from the other. They know their own tartan and a few of the older universal tartans. After that it is all 'by guess and by God'.

I would buy the quality kilt.

Regards

Chas