Brand New Curve 9320 for £80 or 2nd hand Bold 9900 for £170 ?

I'm currently looking at coming back to Blackberry after using an iPhone for a while. The best deal I'd seen was a brand new Curve 9320 for £80, but then I noticed a 2nd hand Bold 9900 for £170. The Bold looked in pretty good condition so I don't think there would be any problems with it.

Which do you think would be the best deal ?