Wasabi has an important 'gotcha': they charge you for a minimum of 90 days of retention, even if you delete an object seconds after creating it.
https://wasabi.com/paygo-pricing-faq/#minimum-storage-durati...
That detail isn't mentioned anywhere on their pricing page or cost comparison calculator: https://wasabi.com/cloud-storage-pricing/
I don't find that pricing objectionable on its own, but I'm wary of shopping with a vendor that advertises price as their main selling point, but buries such a potentially costly pricing detail.