ephemeral

transitory つかの間の

Hand sanitizer is in short supply — in part because people are hoarding it with plans to resell it at a tidy profit.

https://www.marketwatch.com/story/tennessee-man-sitting-on-almost-18000-bottles-of-hand-sanitizer-says-hes-doing-a-public-service-2020-03-14

蓄える cache

相当な額