At least with the electricity prices in Germany (not referring to the current price level, but with reference to the last decades), a dedicated source of heat (

At least with the electricity prices in Germany (not referring to the current price level, but with reference to the last decades), a dedicated source of heat (oil, gas, pellets, heat pump, district heating, …) is normally more cost-efficient than simple resistive heating. So while it's true that that standby consumption is at least good for something in winter, a lower standby consumption and in turn turning up the central heating a little more would normally still be the better choice.