Are you
Thrill or adrenaline?
You rush to the edge of a cliff-
I in turn greet you.
You slam open the door of a plane-
I know you want me. You'll jump.
You yield to me; I'll be the end of you.
All of these things sound like someone who is an adrenaline junkie. It can lead to death
I deliver the prize,
Which is adrenaline
You remember my worth.
It helps you fight or run away.
I uncloak your wild side,
Like bungee jumping, or sky gliding.
You get up to do it again.
Because it releases dopamine into your brain, people keep doing more and more dangerous stuff to get the Thrill.
Edit:
There is an acrostic in the second word of each line that spells:
risky drug