There are only two skins in CS:GO that only exist as "Factory New". These are SSG 08 "Acid Gradient" and Galil and Tec-9 "Blue Titanium".
The first knife that has ever dropped in CSGO is a hook-blade "Murder" in "Factory New" condition. The most expensive sticker currently is Titan Hollow from the Katowice 2014 tournament. At the moment, its price is $70,000.
If you look at M4A1-S "Welcome to the Jungle" in the "Factory New" condition, you won't see anything special, but if you buy this skin in the "Battle Scarred" condition, you will see how the scuffs form snake scales.
There are calculators for creating contracts. This calculator will show you how much a contract is worth depending on the float, the condition of the skins, and their price compared to the skin you can get. You can also find the drop percentage of each skin and the same float.
In CS:GO, there are only two skins with the "Smuggling" rarity. It's an M4A4 "Howl", and a "Howling Dawn" sticker.
The most expensive gloves currently are "Pandora's box" in "Factory New" wear. Now their price is over $30,000.
In CS:GO, the chance of a Knife falling out of a case is 0.26%. Approximately this is one knife for every 400 points.
The cheapest combination of knife and gloves will set you back $153. That is a Navaja knife "African mesh" and driver's gloves "Race green".
Creating graffiti in CSGO was to create the illusion of skins falling out after the match. That was done to reduce the drop rate of expensive skins and cases. Valve gets a percentage for each skin sold, so everything is evident here.
In CSGO, only three capsules require a key to open. These are the oldest capsules. Then the idea that the capsules needed to be opened with a key was abandoned by Valve.
The most popular skin, i.e., the skin that most people have, is the AK-47 "Red Line" in "Field-Tested" wear. On the marketplace, this skin is always on the first or second line.
The most anticipated skin in CSGO was AK-47 "Azimov". The reason for this is the existence of the Asimov AWP, an insanely popular skin that many people like. The surprise of the new skin then was incredible.
The most expensive skin that can drop out of a case without modifications is the AK-47 "Fire Serpent". It currently costs $5,000. You can get this skin from the "Bravo" case.
The dirtiest skin in CSGO is PP-19 Bizon "Ocean Depth", it has a float of 0.99999988079.
You can always find out which skin you will get from the case. When opening a case, you can pay attention to the state of the skins and whether there is a StarTrack value. Only the skin you get is the truth, everything else is mockups. The layouts are always shown in the best condition and do not have a StatTrak value, so if you see skin with this value or shabby skin, know that you will get it.