[mikecane]

You don't want theoretical help. You want real-world help. Hang out at the counter where tickets are sold. You're bound to encounter someone who asks what serial numbers the tickets end in. Take that guy out for a drink and find out what he knows, how he knows it, and if it ever worked for him. I've seen several people ask about the ticket serial numbers and not buy, but scratch-offs aren't my thing, so I didn't bother to pursue it. But there's clearly knowledge out there that people have about this. [typo edit]

Also edited to add: Even ask the dealer. He might know something -- although it'd probably be against the rules for him to say anything, even what he's seen. But maybe he can point you to customers who know.

[Tichy]

Could be those people are just superstitious and only want tickets including their lucky number, or something like that.

[mitchellhislop]

When I worked at a gas station, it was 50-50 between those with lucky numbers and those with theories about where the prizes fell (i.e. higher tickets were less lucky )