Ribera del Duero versus Rioja

Four people tasting the wines:
1 in favour of Rioja
3 in favour of Ribera del Duero.
Both of them were excellent, but only the Ribera del Duero was outstanding!

the "funny" thing:

Matarromera Crianza 2004: 15,45 EUR

Valpiedra Reserva 2001: 20,95 EUR

(you can check the prices here http://www.lafuente.es/ )