A little bit complicated
6 months ago I got my 6600 for £75 with a Vodafone tariff.
Today at about 11am I decided i was bored with it.
At around 11:30 I arrived at phones4u and told em I wanted to upgrade my phone.
Ended up paying £90 (or will do) to end my Vodafone contract 6 months early.
The guy then told me that the phone, unsimmed, was worth £200 and privately offered me £50 as wanted to pimp it over to some philapeno dudes that worked in the hospital. I denied the cheeky little scamp, tho was amused by this extra information.
I am now on a O2 contract and got the phone free. So really, if I can sell this 6600 for anything more than £90, will infact be quids in? I think. Either way, it's all good.