Crs are worth a LOT of money... and the lottery payout is actually quite generous.
On a poor day (check extended today, where the two most expensive are Dragan Cr and Tessa Cr), the Crs are worth around 1.5m.
With 12 tournaments * 150 eligible players = 1800 lottery tickets, your average payout is around 830 clintz. Which is not bad at all for placing in the tournament.
If a big 5 makes it in, you're looking at EASiLY 6-7m in prizes, which makes your average payout around 3200+ clintz... this is about the same as winning a tournament.
That's pretty generous for a random draw, I think.