No one who has a Glock, or likes it, should be calling any other gun ugly! My biggest problem with the Glock, Sigma and others is that I think they should have a safety. (If someone doesn't want to use it, fine, but it should be there, and I don't consider the "safety" on the Glock to be much of one.) These are all excellent guns, reliable, accurate and very dependable, but the manufacturers of most plastic autos aren't concerned at all about looks. I've yet to see an engraved Glock or Sigma, though adding an .mp3 player and a clock to one might not be a bad idea!
Perhaps Verizon might want to have a "phone Glock." When it rings, you just hit the button on top of the safety, which in turn is on top of the trigger. You could speak into a microphone that also doubles as an extractor. The battery would be in the bottom of the magazine and the speaker would be in the grips.
I've never shot a Sigma, so I don't know how close to the Glock it is in actual firing. It was close enough in operation to cause a lawsuit and the subsequent payment of royalties of some sort to Glock by Smith & Wesson. Still, I like guns with hammers. I also like the "cocked and locked" configurations of the 1911s; and above all else, I like the beauty of the classic guns. Can't knock the fact that the new ones work, though.
If I could find a Sigma for a great price, I might get one just to see if it would grow on me.