I decided to stay with my 22 magnum when I considered all the different things I hunt, and their average ranges.
Have a freind that owns one and he likes his for coyote. He has never had to shoot one over a 100 yards, and my 22 mag will do that just as well.
His 17 pretty much makes a squirell or rabbit uneatable at 30 yards, and doesn't really work that good on yotes either (bullet tends to take a pretty good patch of hair off, but doesn't really penetrate that well.)
His 17 shoots faster than my magnum but it also is effected by wind quite a bit more also. I noticed at the range if a brisk cross wind is blowing his groups will open up 3 times larger than on a still day, and my mag groups will open a little to, but not as much.
They are fun to shoot, and probably about the same for ammunition, but I already had my magnum, and I just don't see any REAL HUNTING reasons for owning one.
But to each his own.