What advantage? You keep saying it like it's fact but I've been a backer on both games since early days and honestly can't see any.
If you buy SC retail the only things you won't be able to get are:
1. Life time insurance - which frankly is likely to be worthless and has been permanently withdrawn for everyone from now on. So it's only on certain ships and only covers the hull - not any upgrades added later. The value of this is extremely debatable but it offers no performance/combat advantage and you can't simply spam a new ship out.
2. A golden ticket which right now is allegedly going to be something cosmetic anyway and only covers the first 10,000 people who registered interest in the game (i.e. registered on a website - no cash involved).
So where's this advantage you speak of?
They're releasing more ships as it brings in funds, news flash - it's a business. Do you think E : D charging £200+ to take part in an alpha is OK but charging for an in-game item for a game that's about to hit alpha isn't? I really don't see what the problem is. This is adults spending their cash to back game development which others can then benefit from and which keeps it out of the hands of publishers.
I don't want to derail the E : D thread, I'm a backer of it and actually more excited about it than SC at the moment.
How about we see some gameplay huh for all the money that people are spending. All i seen was running around a lousy Hanger...zzZZzz.