Keeping to the point. I personally have 1 kilt (13oz, 8yd tartan), 1 Sport kilt (Works model), 2 "fakies" (acrylic wool), and 2 Utilikilts. Out of all of those, trying to stay inexpensive I would tell you to go with a "utility" kilt. Reason being...
1) that you don't have to buy any accessories to go with it. You can make due with a "regular" belt (although I would get a "cool" belt buckle), and a pair of boots. If you go with the "cheap" stuff it is usually made in Pakistan, and doesn't have near the quality of Scottish stuff.
2) The PV and acrylic wool are ALOT on the lighter side, in my opinion. I personally have gotten used to having a heavier weight fabric, and the 2 aforementioned like to "fly" in a nice breeze. Again, if you go with the "cheap" stuff it is usually made in Pakistan.
3) Utilikilt in particular is sized more like a pair of jeans. I will say that I personally think they are way to over priced, but if you are not having to buy anything else it offsets that fact.

If you have the courage I would say try your hand at making an Xkilt, you will save major money, and get a taste of wearing a kilt.