As with crab apples, some folks prefer their ornamental cherry trees with an upright form....
David Beaulieu
Picture of Kwanzan cherry tree.
While weeping cherry trees are very popular, one disadvantage I've found in growing them is that, being grafted, they are highly susceptible to pest and disease problems. Kwanzan cherry trees are more reliable. In this photo you can see the leaves of the Kwanzan cherry tree starting to fill in.