There are many custom made alternatives that come in far cheaper than the example you cited.

I am a customer of one of the forum sponsors, USA Kilts. For $120 I get a kilt that is custom made to my size and shape, in any tartan I want, and with any custom alterations to their standard design that I need. $120 for someone like me with a prodigious gut. For normal sized people I think it is $110. That's for the Philabeg model. They have a lower end kilt that rings in under $100. The $120 Philabeg is nice enough for daily wear (and I wear it often, including to the office).