What is the relative value to the customer or business?

Do our users prefer this over that?

What is the revenue impact on our business?

Is there a potential penalty or other negative impact if we delay?

How does the user/business value decay over time?

Is there a fixed deadline?

Will they wait for us or move to another solution?

Are there Milestones on the critical path impacted by this?

What is the current effect on customer satisfaction?

What else does this do for our business?

Does it reduce the risk of this or a future delivery?

Is there value in the information we will receive?

Will this feature enable new business opportunities?