Just got my newest model, a Herpa 1/200th Boeing747-200F Lufthansa Cargo. All I can say is 'wooooww'. Really one of the nicest models I've ever seen. Very high quality, solid built, good detail, and - most of all - extremely big.
If you're planning on buying a new model and don't care about some extra €'s or $'s, I'd say 'go to your local Herpa dealer and take a look at one of them'. Last saturday I had the chance of havin the NW 747 in my hands. Nice model as well.