There’s a fundamental disconnect here and I’m not sure where it is, so let me just explain my position and maybe you can tell me where you’re confused.
Let’s take, for instance, a game which at full price is $40, a game that’s $60, and a game that’s $80.
In all of these cases, let’s assume I have decided that I am willing to pay $20.
In the first case, I will wait for a 50% sale, and buy the game.
In the second case, I will wait for a 66% sale, and buy the game.
In the third case, I will wait for a 75% sale, and buy the game.
If that sale magnitude doesn’t happen, I won’t buy the game. Similarly, if I’ve lost interest in the game by the time that sale magnitude happens, I won’t buy the game.
It’s very simple. Nobody is forcing you to pay $80 for a game, and nobody is forcing you to buy it just because it’s 50% off, if the 50% off price is not low enough that you feel it’s worth your money to buy it. It’s OK to just not ever buy a game.