Cottons have so improved in quality that they now rival silk in almost every respect. Still can't quite get the affinity for bright dyes or the sheen, but in every other way cotton has surpassed the cloth of the emporers. I now sell about 10% of the number of silk shirts as compared to, say, the 1980's. And just wait until MicroModal becomes available in quality shirtings.
I own, and wear a few Versace, and Gucci silk shirts. The feeling, and look of the material is inherently different from cotton, and they tend to be costlier. Especially if there are graphics present, and are double cuffed. And no, they are not Miami type graphics or anything garish like that.