Other sources say Apple won’t delete the photos. Still ultimately I wouldn’t rely on commercial online services to stay in business indefinitely. I would rely on having physical backups in my possession in multiple locations.
A R/W DVD or Blu-ray is very handy for that..
Good advice. I use the iCloud, and pay for 5 GB to store photos, but I’m going to get an external hard drive with at least 2 TB storage, maybe more.