hedwards: ...people tend to forget that in the past the ammo was limited or heavily biased towards lower power weapons which made it logistically less helpful to get to carry all the weapons around.
When I play Duke3D, I keep running out of pistol and shotgun ammo and end up having to use the big guns, which are usually at full ammo by that point. Hence I need to be able to carry everything to live (if there was enough pistol & shotgun ammo to use only those, it'd be boring).
Sort of weapon related: I loved how you could kick almost anytime you wanted without it being a long "this is so coool, look at it" animation in Duke3D.
It's been too long since I played Wolfenstein 3D, Doom, or Quake (I/II) and can't remember how it went with those, at all.
With modern games, I get the feeling the makers want you to carry a sniper rifle everywhere and just punch everyone who gets too close to aim at easily. Melee weapons/ fists of fury deal more damage than a gun the size of a man, it feels silly occasionally.