Agreed. £20 is a tough sell for Rotherham any day of the week :)
That said this is all highly speculative anyway. Albion haven't announced they're adopting this system (if they have - good to see a link ?) and they try all sorts of different methods throughout a season to attract casual fans...
Ta ac gull - good spot.
Here's the Derby system explained... "Demand Pricing"
via http://www.wearederby.com/ticket-office/demand-based-ticketing/ (my bold above)
The prices "from" for next 5 Derby games are...
Birmingham "From £22" (most tickets are in the £30 range though)
Boro "From...