I hate to say it, but I've become a bit disenchanted with the 10mm. Years ago, I was gifted a beautiful Springfield 1911 style in 10mm and loved it. Handled great, loads of fun to shoot, and no question about the power. Sadly, the cost wore me down and now it just sits in my safe. Every now and then I cross a new (used) 10mm in some store or some place and I think about buying it. Then I think of how little I would get to shoot it, since I don't have the time to reload these days....
.357 sig never really caught on with me, either. I like the specs that I've seen on it in reading about it, but everytime I actually shoot one, I don't like it. Haven't handled one in years now, but I wouldn't be keen on buying one till I shot someone else' to know that I would like it.
“There are three reasons to own a gun. To protect yourself and your family, to hunt dangerous and delicious animals, and to keep the King of England out of your face.” - Krusty the Clown