I think the only thing of note is that the B6 apparently uses a different SOC from the more expensive models (C6/E6 upwards) and apparently this has an effect on motion (potentially subtle stuttering on content not at native frequency).

I don't understand how inflation hasn't gone up by about 20% in the UK - most things seem to have had a huge increase in price with the combination of VAT at 20% (2011) and the devaluation of the pound I'd say we are already a much poorer country than we were 6-7 years ago.