I got out of the Army in 2004. Up until that time I was still issued an M16 rifle. Soldiers in Vietnam also carried M16 rifles. Only difference was theirs coudl fire full auto and mine could only fire in burst. (There were other subtle differences of course). But basically, same rifle in service over 40+ years.
Also Z-95's are in the game now and represent an old ship. Maybe new X-Wings will be more expensive than old X-Wings.