There is no difference other than what you mentioned, but I like the difference enough to justify the extra costs. I just bought a Wilson Combat 25 and traded a small Starbenza for a Large Starbenza and I like each one better than their plain handled versions, which are now all sold or traded. The extra traction and the visual adds just the right touch, and I figure if I am spening $445 for a knife, I might as well spend $470 for a version that I will like more.
I also like the idea of anodizing the burst in gold sometime. I think that could look nice.