We all do, friend. We all do.
Dark Void can be best described as immensely disappointing. It's not terrible, certainly wouldn't be the worst game you've ever played, but it's glaringly obvious that the dev team ran out of time, money, or both and couldn't step up to the lofty goals they had set themselves. It's got fairly generic but serviceable third-person shooting and the jetpack is legitimately fun (even during the frustrating moments when you accidentally activate it inside someplace and plaster yourself along the walls, ragdoll-style), but the story barely even approaches the train tracks that resemble a cohesive narrative and never actually starts riding the rail, and it's got its fair share of bugs.
I don't know why jetpacks aren't more common in games. But for that matter, I don't know why cyberpunk/sci-fi in general isn't more common -- especially outside of shooters -- though it's been getting a little better in the past two years.