What everyone has said is true. The only thing that I could add, is (if at all possible) go somewhere and look at a tank. Look at it in depth. See how it is made, depth and number of pleats, workmanship with the pleating itself, how the sett is managed to form different patterns. The story is in the details!

For instance, a Black Stewart tartan pleated to stripe is a completely different kilt than one pleated to sett.

After you know what a quality piece is, then you can judge the ready mades, and the casuals.

There are also other sources of lower priced kilts. E-Bay can have some bargains if you don't need the kilt in a hurry. -and you aren't in the hagrid sizes.

Also, I still have a SWK Standard in Blackwatch, that I am looking for a good trade, but it has a waist of 44"........ shameless plug.