For posterity, there is forever.com, they guarantee 100 years storage for one-time payment. It's like $150 for 12GB, so you must choose which pictures to store.

For posterity, there is forever.com, they guarantee 100 years storage for one-time payment. It's like $150 for 12GB, so you must choose which pictures to store. The sad part is that nobody will ever look at all those terabytes ...