The thing as a whole.
The base game is really not worth getting without the Season Pass, not even as a demo of the things to come.
There was a sale like 15 days ago.
Point is, the base game is only you sitting in a cockpit zipping around space.
Planets and moons were look but don't touch.
Then the season pass game and added planetary landing, mind you it's still on planets without atmospheres exclusively, because the atmospheric flight module is still being worked on, but it still made the space the game takes place in VERY real to me.
This season they added: Planetary landing, surface vehicles and outposts, ship tuning into a one-of-a-kind deal, space tourism and passenger charters, ship-launched fighters and hirable NPC crew.
The season only has 2 update left:
2.3 Commanders: adds character creation and avatar customization, limited ship interactivity, multi-crew with other players in the same shape
2.4: ???? They're keeping this one a surprise.
Planned upcoming seasons will add full ship interiours, space legs, atmospheric landing, alien life and even big-game hunting.
Planned features that still have no conrete season attached to them: Capital ship control basically ships that are a mile long with hundreds of crewmembers
On the wiki there is a full list of upcoming features, and I know it al sounds like a load of Sean Murray talk, I thought the same when they promised Multi-crewing in a game that didn't even have Squads at the time.
But it seems they were designing Elite from the start with those features, all ships from the release date had several empty seats, it's not something they are shoehorning into the game late in design.
All in all, at the end of its development cycle, Elite will be Star Citizen with seams.
Play that until Star Citizen is thoroughly debugged then see if the switch is worth it.
I know I prolly will for the comfy designs.