Nomad usually doesn't profit much from killing creep camps he's more a solo-mid ganking carry that gets his money from kills and laning creeps.
Madman,Tdl and other hardcarries just farm a runed cleaver and that's that.
Skelly's still rape the camps :P stun the camp, then let the skelly's do their job
not to mention he can afk farm just fine with nullstone and spamming his abilities, it'll usually be a better pickup on him than runed
"Proclamation was made, in the King's Name, for all Persons to keep Silence" - House of Lords Journal, Volume 20, 24 June 1717
Mana regeneration, Damage, Attackspeed... Those are things that are REALLY good on madman. The +20% damage from the effect make him a feared midgame hero.