As far as I can remember, retina had the same config options when it was launched. Nothing has changed since... no updates, no nothing. But whatever... As for the "worth it" problem: that's something only you can answer. It's your money, you'll have to live with it and use it.
To me ( for my needs ), it was well worth it... but that's me and my needs.
To me ( for my needs ), it was well worth it... but that's me and my needs.