I am currently having the graduate school vs more experience dilemma and have found the following resources helpful in deciding if and when to go to grad school.
Written by Kate Nixon at Investopedia. What she says to consider:
Does graduate school fit with your career goals? How much can you expect to earn after graduating?
Most useful post I have read about development programs.
Also by Chris Blattman (have you subscribed to his blog yet?)
The anxiety and speculation of potential grad students.
This one comes from the job search site idealist.org. Hopefully you know yourself well enough to avoid going for these reasons:
You are avoiding personal/family/financial obligations
You are avoiding or having difficulty in the job hunt
You are dissatisfied with your current employment
You don’t know what to do with your life
You think a graduate degree is necessary for your next steps
You have always been curious about X
You have always wanted to live in X
Other resources to consider?