The problem with these higher and higher resolution camera/images. The rest of technology is lagging, storage of these images poses a problem on a phone. They eat up more an more storage space. Sending multiple images via email is next to impossible, without resizing. Some apps give you the option to select the size for transmission. Larger files longer transmit/receive time.
Here's a nightmarish scenario that you should prepare for: the cloud storage service where you store your digital photos could shut down. Over the weekend, users of Bevy, a service that stored photos both in the cloud and on local hard drives, received emails saying that the service had "discontinued normal operations due to insufficient funding."