I've often felt there is an element of rigging in the national robbery.
When it started, rollovers were as rare as rocking horse s**t - but the lottery was popular so plenty of profit.
They knew the tease of a rollover would draw additional punters from the chrimbo rollies.
Then, profits started to fall off so they introduce a midweek draw - now we have a rollover almost weekly!
Thing is, by close of play, they know every combo of numbers in play - so they also know every combo NOT in play.
If it is rigged, they could so easily draw combos not in play to give the rollover.
Also, the balls are 'bubbling' away in the drum then a tube comes up to lift a ball.
Anyone play tha kid's game where you catch the ball in the cup? bounces out a fair bit doesn't it?
Always amazes me how the ball stays on the rising tube.