This could also lead to permanent license transfers being possible (possibly enabled via Steam's existng community marketplace, where Steam takes a cut of the sale of virtual goods--and perhaps more advantageous for Steam, sellers on Steam's community market don't get cash; they get credit that can only be used on Steam).
Could be related to a ruling by the European Court of Justice last year, by which "An author of software cannot oppose the resale of his ‘used’ licences" http://curia.europa.eu/jcms/upload/docs/application/pdf/2012...
This could also lead to permanent license transfers being possible (possibly enabled via Steam's existng community marketplace, where Steam takes a cut of the sale of virtual goods--and perhaps more advantageous for Steam, sellers on Steam's community market don't get cash; they get credit that can only be used on Steam).