I've always been fascinated by space, I was born 2 years after the moon landings and have still not stopped sulking about it.
I have a Telescope which I'll learn to take photos with one day, love films set in space Gravity, The Martian, Aliens 2001to name just a few and books set in space Arthur C Clarke's Odyessy series, Harry Harrison etc. ....(bit of a theme developing here)
I was in the position a few years ago to be able to afford the Omega Speedmaster watch that Nasa tested for space flight and issued to all astronauts. I'd lusted after the Speedy for many, many years knowing that Buzz Aldrin wore (Armstrong left his behind on the lander as their was a problem with the clock) when he was the 2nd man on the moon. and I still love looking at it every chance I get, It really is a beautiful watch and as it's a manual watch I love winding up every couple of days. (Pics are available on request as I'm a right show off....

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When the moon becomes unlocked (Not yet in game) I'll be pointing my Cobra in its direction to do a moon landing the same as I've done countless times before in Frontier and FFE with the biggest cheezy grin on my face and heading off to the sea of tranquillity to check out what FD have done there.

I really can't wait to do that.
However, The 3rd game in the Elite series FFE was my favourite before ED came along and I've spent hundreds of hours playing it as either a trader, explorer, pirate and I'm now happily doing the same with ED interspersed with a bit of CQC to keep the old reactions sharp.
ED is quite simply a stunningly beautiful game. The attention to detail that David B and all the boys and girls at FD have put into creating a accurate representation of the galaxy is astounding. The sights and sounds of the game are something very special to me and I know that they feel the same as well, to be honest I can't see anything out there that comes close to it.
What also makes the game special is the community that has grown around it, there are some fantastic people here on the forums and the creativity, inventiveness and humour that the Elite fans have that surrounds the game is something I've never experienced before and is exceptional in the kindness and togetherness just because of a small game that two Cambridge Graduates made for the BBC Computer and a few beermats is phenomenal.
I'll have a look at NMS when it comes out but along with SC both not being part of our galaxy is something I'm personally not all that interested in, they are both looking really great games and I know has a great fan base already. But for me I think the realisim of ED is what keeps me hooked on it more than the others.
I've got a Oculus Rift and sitting in the cockpit of my Cobra wearing the DK2 is probably the nearest I will ever get to actually experiencing what space actually feels like. (Damn it.) for those who haven't had the chance to do this, if you get the opportunity to do so you won't regret it.
So for me, ED really give me everything I want from a space game A massive galaxy to play in either alone or with friends, stunning sights to see, amazing sounds to hear and the nearest feeling of actually being in space I'll probably get coupled withthe continued series of expansions FD have planned I'll be a very happy little mod for many years to come.