Like you don't want to eat that immediately because you want to savor it slowly.
and also, i feel like that i will get addicted to this series, so I stop reading it.
I guess it's the same thing as marinating(let it complete or produce more chapters) the series because you don't want to eat(read) it while it's still half-cooked(Ongoing).
Iz thiz notz gettingz uptatedz?