Tall Paul,
All those pictures of full scale planes landing with full flaps are neat for sure. They all certainly are nose down. But they've also got wing AOA's that are anything but "nose down". And you will admit, won't you, that our model airplanes without flaps aren't going to be low drag or slow if we were to honk 'em in like those full scales in the pictures?

For a model without flaps to get a draggy and slow approach, we really don't want to come in nose down, do we?