It's pretty shallow. Supposedly they were supposed to redo the scanning mechanic but that has not emerged since Alpha/Beta. Plants once you have seen them all is fairly yawn inducing. I mean you can't talk up a turd.It's deeper than it looks. It's not as simple as just scanning a planet and flying down to the blue spots, even inside the blue spots, plants will only grow in certain places in accordance with their biological tendencies. It could be improved, but it's well worth a look.