Sure, waiting is a good thing. Not highly valued in our culture, but still it is a good thing.
Sometimes there's no good reason to wait.
That's why Liz got a cool pink kayak for her "big number" birthday, even though it's years away (we won't say how many). You never know if the price of kayaks may some time skyrocket. You never know how someone's health might be. . You never know how your finances are going to be. You never know where friends may disperse over the years. That's why when you see a good deal on a Barbie-pink kayak and you know someone who would love a kayak, you seize the day and buy it.