This is of course just my theory but, I have played this monopoly game with Mcdonalds a couple of times over the years.
My theory:
They release millions of tickets most of which need all "THREE" pieces.
They make millions of the same two pieces.
Then they make MAYBE a couple hundred of the other third piece.
I came up with this theory mainly because.
upon playing this game, how many times have you came "really close" to winning because you have two of the pieces.
Creating this "oh my gosh!" forcing people to feel an excitement when they eat at Mcdonalds.
Which adds a positive impact towards Mcdonalds in our brains.
Also.
Some people actually will buy meals purposely at Mcdonalds for these tickets thus, earning more money.
I do not eat Mcdonalds very often but I did eat there a week ago.
I came very "close" to winning on just my meal.
Had two of three different colors. Proving once again my theory..