You know this has nothing to do with worth and everything to do with want. 
If for target shooting or maybe a comp, then yea. They have adjustable sights and most, but not all, come with a 3.5 trigger instead of the 5 from the factory 5.5. It also will have the ported slide in case you want to ported barrel, some can be found with the "c" barrel already installed.
So worth really comes down to how much you want it. Just from my own experiences, whenever I wanted one gun but bought another because it was more practical or a little cheaper, I ended up with both. I had a G34, and it was fun to shoot, I just didn't shoot it much so I traded it for my G26.
If for target shooting or maybe a comp, then yea. They have adjustable sights and most, but not all, come with a 3.5 trigger instead of the 5 from the factory 5.5. It also will have the ported slide in case you want to ported barrel, some can be found with the "c" barrel already installed.
So worth really comes down to how much you want it. Just from my own experiences, whenever I wanted one gun but bought another because it was more practical or a little cheaper, I ended up with both. I had a G34, and it was fun to shoot, I just didn't shoot it much so I traded it for my G26.