Are they as comfortable to hold? Do they cut as well? Do they stay relatively sharp after repeated use? Compare them to other fine knives you might have.
I'm not a knifemaker, but I am a prolific buyer, and heavy blade user. Make sure you get your knives to perform first, then aesthetics will follow, and so will the interest. For me, a knife doesn't have to be over the top with embellishments, but I do look for nice lines, quality materials, attention to what's important, and most importantly performance.
All my knives get used, from a $20 kershaw to a $3000 custom katana. Looking at the katana though, it doesn't have most of the traditional features. It doesn't even have a menuki, or intricate tsuba. It is however, very well made where it counts, fits perfectly to my hands and height with perfect balance and weight. I had it built for one thing (tameshigiri), and it does it very well. I've accidentally cut 1/3 of the way into a brick (swung at a sapling in the back, and went straight through it and into the corner of the house) and after torquing it out and cleaning it, the blade shows no evidence of any damage except for a few scratches. I dare say the $20 knife looks fancier (a red kershaw centofante), but the katana was worth every cent I spent on it. It is just superlative in its function, and that's what matters to many.