I was going to buy a nexus s today. Only 200 quid, no contract. I can sell my phone to mazuma for £120. But the resale to Mazuma for the Nexus S is only £80.... WTF...
Why would you want to buy a Nexus S though? It's the same thing as the Galaxy S + camera flash.
Because the Nexus already has ICS. The GSs will never get it. Officially. Nor will they get it first.
A direct port of Nexus's rom will be definitely available for the Galaxy S soon. Improved ones probably later. Same hardware, anything that comes of for the Nexus S should come out for the Galaxy S too.
I agree that the Nexus S looks better though. But I would only trade a Galaxy S for Nexus S if it was for almost the same price.
I still want a new android phone. Seriously considering an SII.... Because I want a new phone.... Today.