Any advice on choosing a handgun?

I’m going to buy a handgun soon. I’ve owned my share of firearms but never a handgun. I don’t want anything too small, such as a .22 pistol, but I don’t want a gun that’s going to have ammunition that’s so expensive that I can’t afford to shoot it. At the moment, I’m leaning toward a Glock 31 which is a .357.

I guess what I’m looking for is input on the Glock 31 or any other suggestions for someone buying their first handgun. I’d like to stay under $1,000 also.