I am trying to find the most practical place for my family to store all of our photos (and short videos). Needs to be a place where we can each independently access all of the photos. We have two MacBook pros, one of which is ~5 years old, as well as two iPhones and a new digital SLR camera. We probably need at least 10-20 GB of storage (ideally more as we accumulate more photos and videos). We currently have the 20GB iCloud storage plan, which is pretty much maxed out. Should we just upgrade to the 50GB plan, or is there a better option? Thanks in advance for the advice!