It's a different engineering construction and delivery, and the onboard technology leaves the earlier attempts in the dust.
The world has moved on and computerisation and miniaturisation and power consumption is an entirely different age now too.
Analysis in situ is lightyears from having to bring home some dust.
Right enough my Grandpa when being thrawn about not believing that men had been to the moon, and someone said, "But ye saw it on the telly!", replied, "Aye, and I saw Mickey Mouse on the telly too
".
I think it's interesting and last time we had a space race thing going the technological developments were brilliant.
cheers,
M