Right now I use backblaze for $5 a month.
This covers my photos and videos on OSX.
I saw in another comment that backblaze is only one datacenter.
If Amazon included video even if it was only 1 TB I would dump backblaze.
I may still use the prime photos for my iphone as apple cannot backup the amount of photos I take to their cloud.
Transferring them to the iMac for backblaze is a pain.
If Prime Photos had a print service where we could do Christmas cards etc that would be even cooler.