In depth: Do we really need expandable memory on our phones any more?

Everyone wants more storage on their phone, but the cost seems too high. Apple is constantly lambasted for not having expandable memory ports in its iPhones – but now that we have a 256GB iPhone, and access to reams of cloud storage, do we really need it?For some the extra space is a safety net; for others it's a media storage centre that enables them to hold masses of music, movies and photos. You can only consume so much media though – and with streaming so widely available, do you