@jaymeskeller How has inflation been in that period, though? In terms of purchasing power, the cost may have remained more or less constant.
@jaymeskeller Doing the math (if I'm doing it right) suggests that £20 in 1995 currency would be a bit more than £25 in 2016 currency, so that would imply they've approximately doubled in real price.
@Felthry Hmm..I can't say for certain. I ran a check on the inflation calculator, and it seems like 2.7% a year from around 1995 to 2016.