Let's think this through.
You are Apple and on Day 1 I sue you. You've sold 1 phone. I get $1.
You are Apple and on Day 728 I sue you. You've sold a trillion phones. I get a billion dollars.
THAT'S why every patent suit gets "delayed."
No, it's the same.
If I sue on Day 1, I get a dollar per unit from then on. You eventually sell a million phones, I will eventually get a million dollars.
If i sue on Day 728, I still get one dollar per unit. You've sold a million phones, I get a million dollars.
The only difference would be if I also get penalty money for your refusing to pay up.