I've been wanting a 10mm since I learned what guns are.
My aversion to Glock has nearly been overcome. And the only reason I don't own a 10mm. I was 'this close' to buying one just a few days ago. I know my willpower won't last much longer. I already have several hundred rounds of brass, projectiles, powder, primers.....
After looking at the 10mm options out there, I am forced to admit that the Glock is by far the best option unless you're a millionaire. and even then, the pricier alternatives aren't really better, just "hey, look how much money I have to waste" kind of things....
If you just buy ammo, it's probably not the gun for you. The ammo price will make you realize just how expensive the expensive guns aren't by comparison. For re-loaders, it's win on a stick.
Buy the glock 10mm, I know I will and I'm a 1911 purist...