I have been traveling to Spain quite often for the last 2 years. During my last trip I wanted to go to Cordoba for a few days but the hotels were really quite expensive. Someone mentioned bancotel ( web page )and we could get a fantastic room in the Hesperia Hotel(4 stars)for about 50 euros a night. The money was for the room not for each guest, so we paid about 25 euros each.
You can use bancotel coupons en many nice and expensive hotels for the same amount and it also works for renting cars. The coupons don't work everyday or every season, so you must check that on bancotel web page or with a travel agent.
Hope this works for someone who's planning traveling to Spain