Omega Speedmaster Gemini IV - value?

[Maxf]

Does anybody know what these are going for at the moment? I have one which isn't getting much wrist time, so I'm thinking of moving it on.

Ebay shows them as unsold at between £2-2.5k (non-uk sellers)

For those that don't know - it's a limited edition speedmaster with blue face and white dials (2005 made), to celebrate the anniversary of the Gemini IV 'spacewalk' mission. Mine is still in warranty and has everything.