Every gambler has a system. It's all about luck though. For someone who hits a block spending 0.20 on a rental there's someone who could spend 25, 50, or more and still not hit anything.

EDIT: And the people who spent that much gambling and losing aren't as likely to post telling you how bad a decision they made as those who won. I feel like this thread should have a "if you think you have a gambling problem.." tagline. Haha. But the sad thing is that I say this also for my own benefit...