I'm familiar with your (1) and I think it fits extremely well with the negative emotion explanation.

At least for me, making a difficult decision that might have far-reaching consequences can be very uncomfortable if I don't have all the information. And it can be very easy to procrastinate because I tell myself that more information might be available in the future (even when that is clearly not true).

So, it's not so much that I search for an optimal strategy and more that I know there isn't one and I don't want to bite the bullet yet and make a decision.