You point out some issues that I wasn't aware of (not being a UK customer myself) but you know what, for all their problems, you still kept going back for more. So what incentive do they have to fix their problems?

Sooner or later someone is going to come up with some great designs, and partner with an inexpensive but high quality offshore sweatshop for mass production to cover the more popular sizes. No they won't be as perfect as some of the custom kilts the guys here are sporting but when you can get a nice kilt for $50 with a rapid turnaround time (about a week between order and delivery by post) it's going to fill a huge gap and make people consider kilts that would have rejected them before due to the cost of entry.