I personally own 2 Economy SWKs and one Standard.

The first one was a solid black Economy. I had gotten it in about 4 days... IN HAWAII (everything takes weeks to get to Hawaii). Sadly, I never got to wear that kilt until I had moved here to Maine... thanks to a little weight loss. The Solid Black Economy has been a great purchase, and it will be makiing a grand appearance on Labor Day Weekend at the Down East Pirate Days pirate festival in Rockland, ME. It will be the Kilt of Honor in my kilted pirate outfit (along with a frock coat in the making).

Numbers two and three were ordered at the same time. They are the Irish National Economy and Hunting MacLeod Standard. In hind site, I wish I would have gotten the two swapped (IE gotten the IN as a Standard and the HM as an economy).
The Irish National has done me quite well. I have worn the thing so much that it is nearly due to be replaced. I won't hold the fact against SWK's quality at all... I beat that thing up and it is only BARELY showing signs of distress. I did notice when I got it that there were some changes made to the economy between February 2006 and August 2006, but they were mostly cosmetic.
The Hunting MacLeod Standard is a personal favorite. I had gotten matching flashes with that one, and it has been worn as I would wear a regular pair of jeans (casual outfit... with a t-shirt), it has been worn as I would wear a pair of khaki pants with a decent button down, and it has been worn in a semi-formal setting. I love it, though my efforts to lose my belly have resulted in all three of these kilts being loose on their tightest setting.

Finally, I have a Wallace Thrifty on its way for my 11 year old son. He's so excited, and it makes me swell with pride.

I am always trying to pursuade people over to the kilted side, and Jerry's organization is one of the first (and sometimes only) one that I mention.