Expedia is ~5x larger that it was in the mid-aughts and Priceline is ~10x larger and each has the benefit of a decade's worth of data. So if the barriers were n

Expedia is ~5x larger that it was in the mid-aughts and Priceline is ~10x larger and each has the benefit of a decade's worth of data. So if the barriers were not insurmountable then, I think they are now.