Well, I must say you do have a point there.

But somehow I wasnt be able to kill much anyway in early game, so I didnt get much money out of that either. Nowadays Im trying to lane with Ashe and training frost shot first indeed and maybe with the help of your teammate and your slow Im able to kill more in early-game.

"Ofcourse Greed is arguable since I said that ashe is item, thus money dependable. Simple math shows thats even in a match which lasts an ower it only generates 1 gold x every 10 seconds, is 6 in a minute x 60 minutes in 1 hour = 1 x 6 x 60 = 360 gold. Its hardly worth the effort."

Let's do the math for Hawkshot. Asuming you have 200 creep stats (you will often have less), let's say you killed 10 minions with the hawk lvl 1 (3 waves of creeps), 20 with lvl 2, 40 with lvl 3, 60 with lvl 4, and the rest with lvl 5 (70).

It makes : 10*1 + 20*2 + 40*3 + 60*4 + 70*5 = 10 + 40 + 120 + 240 + 350 = 760 gold. It's about twice the 360 given by Greed on a 60min game. If Greed is not worth a single talent point (considering your item sequence, 3%AS instead or 4 would not change a thing), i think leveling Hawkshot is even worst. You will fail some kills due to insufficient snare or Volley damage, each kill is 300 gold in early game (400 for first blood). It can drop to 100 gold if you kill a feeder, and up to 1300 if ennemy is in a row of 8 kills. I would not be happy fo miss a kill on such a champion because he used his ghost and i only have a 15% snare (you also have ghost, but it may be on CD, or you could be stunned 2 seconds and he would be gone).