I thought so too during the beta, I really enjoyed the new planets and all. But since beta closed, I havent bothered visiting any new planet. They unfortunately already feel all the same to me. I had found one in the beta that looked like Highlands hills, pretty cool. Never found one like that since. And yeah, since the topology is still the same, meh.
Well, if you haven't landed on any since beta, then you won't know will you. I have seen some incredible sights.
The differences are pretty superficial though. Some planets throw up some nice canyons, but that's about all. There are only a few different sized rocks, all the same, on every planet - there's no point 'exploring' in the hope of finding something unusual or interesting, because it doesn't exist. It's why most screenshots are of space, rather than on planet. And the ones that are taken from the SRV are usually capturing something astronomical, rather than geographical.
Then you would be wrong then. I have seen some amazing scenery in my exploration of the galaxy.