I buy one medium strawberry shake at Mickey D's once a month when I attend a monthly sack lunch leadership meeting. (I figure that one medium shake has enough calories to equal a lunch.

)
So it would take me a looooooong time to get all the pieces for a McDonald's Monopoly game. Our local Albertson stores also ran a similar monopoly game this past year and we shop there almost exclusively except for an occasional trip to the farmer's market for produce in the summer and Costco every other month or so. So I amassed a huge number of monopoly pieces.
No winners. Nothing. Nada. Zilch.
Been playing Pogo games for years now too--you get a jackpot spin or some such playing all of them and there are some nice cash prizes. Never knew anybody who ever one any of them.
Been doing Publisher's Clearing House and used to do Reader's Digest prize thingee for years and years. Never won anything. Never knew anybody who did.
So you do wonder after awhile if there are real winners of these things.