When people ask me about how expensive kilts are, I remind them that:
a) they are worth it -- the cloth is expensive to begin with, and there are many skilled man hours that go into making one, but most importantly...
b) a kilt is only expensive if you never wear it. If you wear it regularly, and you enjoy it, it will be worth every penny and then some. On the other hand, if you only wear it once a year or so, it will be the most expensive item hanging in your closet.

Remember, too, that (assuming we are talking about a traditional kilt) you are investing in an heirloom item, one that can be worn by your sons and grandsons long after you are gone.

Aye,
Matt