I have always had a want to own one, but I am not sure why given other options...
Gotta scratch that itch to really know....At this point, I own every handgun that I have a burning desire to own. Here in California, Glocks hold their value very well, so it doesn't cost much to try one out for a year and sell it off. If I always wanted to own one, I own one.
I hated polymer guns, having carried S&W revolvers, third gen semis, and 1911s for three decades. For some reason, I decided I needed to get a 9mm polymer to avoid being completely antique and closed-minded. I shot every rental at the range, and stank with them all. XD, Glock, M&P, no real difference. The rangemaster suggested trying a Glock 30, and so I did. For some strange reason, I shot it very well. I went straight to the sales counter and bought one.
This still didn't fill the original goal - a 9mm. Further discussion with the rangemaster led me to order a G34 - they were scarce at the time. Got it, and stank with it. Took about 500 rounds of lousy shooting to convince me to start experimenting with my grip on the gun to find what worked - and I did. Shot it well enough to take 1st at the GSSF shoot that summer.
It's a very good pistol. Mine is completely stock - the closest I come to competition is the GSSF meets, and it does well enough there. If you put in the time and effort to learn to shoot it well, you will shoot it well....as with most any of them. I enjoy shooting my G26 more, and since it's in my carry rotation it gets more trigger time. My G41 is my most accurate Glock, but far slower.
Gotta scratch that itch to really know....