Rhuby said : I only play when the jackpot gets really big now. Not so stupid, huh?

Got to admit that I usually by a single ($1) ticket when the jackpot has not been hit for many months.
However, I have no problem with spending the odd dollar on a ticket when the payout is "just" a million or two. A dollar isn't much to pay for a week of dreams.
Generally, people who play often have a set of numbers they play all the time. Birthdates, chidrens'ages, etc.
To get a larger share of a big jackpot simply buy several dollars worth of the same number! For example : ten numbers match the winning number. You have five of them. So you get half and the others split the other half.

Oh! And in golf a "scratch player" is one who is allowed no strokes but must play the game with no advantage.