Segment is best used with identified real users (i.e., you have their email), not anonymous web traffic, mainly because the former is where all the value is and the latter will unnecessarily drive up your bill.
That said, they could consider a cheaper, lightweight option that pipes traffic for you with a single tracker (the original value prop) but without the identify call and custom track calls, which is where all the downstream and up-market value is with respect to personas and the swing to become a CDP.
That said, they could consider a cheaper, lightweight option that pipes traffic for you with a single tracker (the original value prop) but without the identify call and custom track calls, which is where all the downstream and up-market value is with respect to personas and the swing to become a CDP.