RuneScape gold is the form of currency for both Old School RuneScape and RuneScape 3. Without it, you cannot make any purchases that require gold or GP (gold pieces). This will highly restrict your ability to access new areas, complete quests, buy weapons and armour, runes, ammunition (such as cannonballs and arrows). Hence, RuneScape gold is of absolute paramount importance and that cannot be understated. Your ability to complete content and level up your skills will be highly diminished without sufficient RuneScape gold.
RuneScape gold is often easily achieved at higher levels, but it is still a grind. At lower levels, it is often far easier to merely buy gold. This is because you only have access to money-making methods that can only give around a few hundred thousand per hour in gold. Whereas, with one hour’s salary from real-life earnings, you can buy 10 million+ gold. It is merely an equation where you balance game time versus real-life time. This is because money-making methods do not award much experience, nor are they fun, and this is particularly true at lower levels. Even At higher levels, you will have goals to attain very expensive equipment, meaning the grind is still real.
Hence, many customers choose to buy gold whether they play RuneScape 3 or Old School RuneScape. Many other customers decide to sell gold when they quit the game, this is extremely logical as you might as well get a reward from quitting OSRS or RS3. Otherwise, that gold would be sitting idly in an account you’d never log into