But even given the gaps of knowledge, Romanophiles are more blessed than possibly any other student of ancient civilization. They were, unlike some ancient peoples, highly literate, and loved to write about themselves and their neighbors (albeit in a sometimes biased fashion). Latin is easily understood unlike some other ancient languages.
The material remains are scattered throughout three continents, and archaeology brings a significant new discovery almost every month it seems. The Romans built with durable brick and marble, unlike some of the cultures that built with wood and mud (but kudos to the Egyptians for building some enduring monuments as well).
I choose to concentrate on what we do know rather than what we do not. In contrast, pity the poor Celtophile, whose chief source of literary reference was from a Roman general at war with the culture!