Yep, the value of gold/silver may be temporary, but so far it's been accepted in SHTF situations for 5,000 years. I think it's a good bet to have some on hand as part of a larger plan.
I have limited funds and I honestly feel that right now between buying "stuff" and buying gold/silver, I am going to go with the stuff. I can always "sell/trade" the "stuff" for gold/solver.