I did not start going for gold camos until my 2nd Prestige. I was using SMGs till then and then I started going for Diamond ARs. I finally got it going into my 7th Prestige. I got gold on the SMR which was the last one I needed right as I finished my level 55 and prestiged. So it took me that long. I'm not the greatest player so I'm sure people can do it in way less time that I did.
Currently I'm working on Diamond Pistols. I saw a guy using them and thought they looked really awesome so that's my next task.
NEVER argue with an Idiot. They will drag you down to their level and beat you with experience.
I'm not sure if I want to go for all the diamonds or not. I enjoy a few specific guns and I don't know if I want spend the time playing with guns I don't even like just to get a diamond camo. They do look really cool though. I know I'm at least going to go for diamond pistols.
I'm more inclined to say get a life to people who are max prestige or even close. I feel like I put a lot of hours into this game (especially double xp) and I'm only 3rd prestige.
But whatever, it's your life. If you want to spend it sitting in the house staring at a screen all day, so be it. Personally, I feel like I would look back one day and feel like I wasted my years if I did that.