@weaponz248 i wouldn't say the landings are not worth it, but instead a variable of extra gameplay that depends on what you like.
Its a sandbox game and some people get disheartened or say no contentis there as there is no rail-roaded or scripted path. The same reason some people didnt like the x series space games (x abortion aside) outside of the campaign because it was so sandbox.
For me personally, i think planetary landing offer a huge amount to the game. I love the feeling of sitting on a planet(oid), then having that lonely vulnerable spasm wash over you as your ship departs leaving you on the surface of the planet.
I enjoy the varied landscapes of different planets, i enjoy landing on difficult planets (try to land on a 10g + planet without dying). I enjoy hunting down areas of interest then plonking down and hunting with the srv wave scanner (i have a good tutorial for that). I also enjoy exploring planetary installations and the mini games they hold within.
I also just love landing on a planet and watching close asteroids or nearby celestial bodies make the most amazing backdrop. I like to look up at the sky and see a distant nebula and think, "you know what, i can go there if i want"
But its a sandbox, so if you are not into using roleplay with some fantasy soaked imagination then yes, you probably won't see much use out of it.
Of course there is resource collecting on planets, and that can be one reason to go, but at the moment, its not really needed. If they flesh out the market system of the game, then this would be much more important.
But i like it. For me it really adds to the immersion of being on space. But mileage will vary from user to user.
also don't forget that aside from the space artefacts, planets surfaces are the first place we have found alien structures offering strange collectable resources of unknown benefit.
So, all i can say is check out the you tube vids and decide if it sparks that side of your brain. If so, get it. If not, then wait a year for the next season update which will include all previous updates and save a few dollars in the mean time. It certainly wont stop you making money and getting bigger ship not having planetary landings.