In the end, I didn't make the purchase. I know that some of these items are likely to go on sale at our local grocery store in the near future. A "case-lot" sale is scheduled for April and flour and rice prices are typically lowered. But every time I pass those empty buckets, I find myself wondering if I should have just purchased the food stores. Knowing that those buckets sit empty reduces my feeling of preparedness - well, two-buckets-worth.
Was it worth waiting? I'm not sure.