Ok since we are talking comparative value then we should use the average UK house price as a base.
Our constant is £1500 - Launch price in UK of A1000 and suggested launch price of X1000
Average UK house price in 1985 £31000
Average UK house price in 2010 £223000
Therefore an A1000 (£1500) was
4.8% of the average house value in
1985Whereas an X1000 (£1500) will be
0.67% of the average house value in
2010 So an X1000 today is about 7.2x less expensive than an A1000 in 1985.Clearly ignoring the technological gulf that the A1000 represented in 1985 
