$8 per coin, on average? Seems kind of cheap. I guess Roman coins are pretty common.
They're probably bronze, rather than silver or gold, and not in very good condition. The Roman empire peaked (financially and politically) in the reign of Trajan, and his successor Hadrian did his best to undo some of Trajan's accomplishments, while spending money on his favorite pasttime, pederasty. It took a long time for Rome to fade away, but one of the reasons for the fade was the constant attempts by provincial authorities to seize part or all of the empire. Aurelian only ruled for five years, and was murdered (in his sleep I think) by a corrupt official who was about to be exposed as such.
No, closer to $15 per coin. Not a big difference though...