Assuming regular care and maintenance (cleaning, lubing etc) and proper use of the pistol by not dry firing it and using only good quality ammo...how long do you think a Glock can last? What parts are most likely to break from use and storage over time? Who here has experienced first hand (as in you own it, not a friend of a friend heard of a guy..:embarassed a Glock still going strong after 10,000, 50,000, 100,000 rounds? What have you had to replace, if anything? Thanks!