Incremental benefit vs incremental cost

What is the cost of getting that extra piece of information?

Will it cost time?
Does it require spending down social capital?
Will you endure prolonged stress of not having made a decision?

Now, consider the actual value of that information. Will it change your decision? And if so, how much better off would you be with the new decision as compared whay you would have chosen without that information?

Be sure the incremental benefit of that data exceeds the cost of attaining it, instead of chasing more information simply to scratch the itch of wanting to know.