That depends largely on where you live. Quite a few people have asked us about Google's maps and said the opposite: "they're lower resolution, but still nice to have around."
The DOQQ (black and white) is not always the best available, but it's still an impressive set of imagery. The areas covered by Urban Tilesets are incredible, even from Terraserver/TopoFusion. Sometimes Google Earth only has a coarse sattelite image, similar to TF's Landsat.
Like the username.