I have never found anything as nice for my hand as the G502, and it has the perfect amount of buttons. That’s why I had to stock up!
The G13 got really popular AFTER Logitech discontinued it, because there really hasn’t been anything like it on the market. I went looking to stock up on those too, but I was too late - they will go for a couple hundred bucks or more, used, when you can find one!