Thanks for listening to us!
Some suggestions to make the wrecks more interesting:
1) MORE wrecks everywhere (100x more)
2) Lots of different sizes. from full ships down to a single engine or container sticking out of the dirt
3) Different states: some are dead. some have "active" defenses -- obviously these would have much better loots
4) Wrecks in space
5) respawn wrecks after they are salvaged
disclaimer: I have never seen a wreck myself, so #2 may already be done.