Jared Mauch wrote on 30/04/2020 19:09:
ixps have always been a mid-market phenomenon. They don't deal with the high volume data flows because it never made financial sense to do that. At the lower end, they have a cut-off point which broadly aligns with smaller wholesale requirements. For the bits in between, they can provide good value.This is why the majority of traffic volume for interconnection has generally been over private peering links (paid, SFI, otherwise).
Nick