You hit on the key word right there in your 1st sentence: precious. It's precious to some people. Goes beyond rational or objective value. Gets into emotional

You hit on the key word right there in your 1st sentence: precious. It's precious to some people. Goes beyond rational or objective value. Gets into emotional experiences, and heck even just having fun, getting a thrill, the excitement. That's why they feel they cannot wait, or choose not to wait. There's also precious in the Gollum sense: "What has the nasty Bagginses done with my preciouses?"