I still think you can build upon a proven design to make it even better. This goes for any business. If one rests on their laurels and become complacent then the competition will pass you up, not only in sales, but the quality of their product.
I'm sure Glock does not rest on it's laurels and even if their basic design hasn't changed much, they continue to strive to improve upon what they have. This might be in their testing, this might be in the form of adding new features/materials to make it not only safer, but more accurate and dependable then it currently is.
I went to the local Runnings Farm and Fleet, Fort Pierre gun shop, and Dakotamart.
Runnings and Dakotamart did NOT have H&Ks.. i asked why.. they said the demands for them are low. we do not carry guns that are low demands.
Gun shop had several used one. I asked them if they are good guns compared to GLocks or Springfields or even Berettas.
they said and I QUOTE: "personally i wouldnt buy one. the people who traded these guns went for a XD or a Glock.
one customer had a H&K that was no good. I refused him to trade his gun to me. Not worth fixing. "
Dakotamart was no help. there was just 20 year old kids with an older man who was constantly busy so i did not ask him about it bc i respect his time frame as the kids were not your best choice to ask about hand guns.
Runnings had ONE beretta 92FS for sale, had lots of Rugers for sale, Lots of Glocks for sale.
you will see LOTS of glocks for new or used... take this for ecxample. GM make so many Grand Prix and Grand Ams that EVERYONE about had one. you see more and more of them at used car lots.
same with glocks. theres soo many productions of them its common to see them.
as far as glock making new glock? yes they do. theres Glock, Glock gen 2, Glock gen 3 and Glock gen 4(current) as they might readjust the grip pattern, or new plastic trigger instead of the old one, or whatever. it could be a brand new metal spring they decided to use.. but the design of the Glocks are mostly the same. I have NOT see a hammer type glock yet.
ported barrels are the newest but not needed. I think a lot of competition shooting are using the ported from Glock for less recoil from the gun power.
If someone gave me a H&K right now.. for free. I wouldnt accept it.