[breischl]

Because playing poker is a much easier way to make a sustainable income!

Hm... actually, it might be. At the very least you certainly don't have to shell out as much for software.

[gizmo686]

Also, in zero sum games like poker and investing, the real question is how much better then the competition you are. In investing, you are up against some really good competition. In poker, you can play against a lot of recreational players, who are could be far less skilled then you. With online poker, you can play many low value hands in parallel to get even easier competition.

[gnaritas]

That depends on where you invest, all markets are not equally competitive.