Well, I am not statistician but those who play the same numbers over and over IMO, have higher chances at winning.
If you flip a coin, chances are 50-50 that it will land a certain way (unless you got some crazy computer doing it at a certain force...).
There is a VERY high number of players. So the chances of strange coincidences happening are very small, there are so many people playing that there
will always be a few that get out of this world experiences - such as winning...
On a side note, theoretically if you play the same numbers over and over, your chances of winning will increase, until of course when you do win, or
get close to it.

