So, one of the more surprising things that was claimed to me (But I haven't verified myself,) is Oracle doesn't charge for IOPS on OCI the way AWS would for an Oracle instance.

I'm sure there's other devils hiding in details, but that alone would make it a very tempting target for orgs that want to move off-prem to chase the 'move to cloud' 'KPI' 'Synergy' but still have a bunch of trash queries/etc running under the covers, with the additional benefit of you are safer when the sales/legal folks from licensing visit your offices for renewals and the like.