There is definitely some complex theory crafting at work when you have to account for ROI of immediate enjoyment versus the delayed gratification based on the probability of surviving long enough to make it to said delayed gratification. So far, my data heavily skews towards there not being as much time in the future so I'm likely overvaluing the present. Time will tell...
We all over value the present, but what we value doing might change. Some people think that the most valuable thing they can do with their time, is watch the Kardashians.