2 questions:

1) Why wouldn't you go to grad school now?

2) In 30 years, would you regret taking a break in your career for a few years, or would you regret not going?

IMHO, it all depends on your goals really. It doesn't matter if you are unemployed, working at a restaurant, an engineer, or a millionaire CEO, the sun still rises each day and it is up to you to build the experiences, relationships, and, ultimately, memories that will make you the happiest you can be.