I can think of two concerns about online ordering. First off, there's the "reputable vendor" issue. The second would be sizing. As regards the first, CCGA3359 pointed out that a lot of the vendors also post here, and are members of our community. From the "instant gratification" of a Stillwater to the fine custom work done by USAK, FK, etc., I just don't think you can go wrong with "our" vendors. Sizing can be tricky---I've changed the way I wear kilts, which means that my "old" kilts look like miniskirts. (Since I wore them down on the hips, and now I prefer to wear them 2" above the navel.)

Best of luck, in any event!