I agree. Just because it's old doesn't mean it's valuable. Archaeologists come in and determine if the area has any historical value or advances our understanding of the ancient past. If it does, construction stops while the finds are uncovered. If not, then continue on.

Finding yet another clay pot in Rome, one of the largest centers of population with one of the longest and most complete historical records of anywhere in the ancient world, is probably not going to be of much historical value.

In an age where you can buy 10 Roman coins on Amazon for $25 and have them delivered to your house in two days with Prime shipping, the value of common ancient Roman artifacts is made abundantly clear.