Qnap started with a WD my cloud which is very user friendly for around $200 AUD. Over the years I've upgraded to Qnap where you throw any budget you might have and times it by 10.

Samsung had an offer years ago buy a phone get 50GB free Dropbox data free for 2 years don't know if thats still around but they try to make you pay after the period.

If you only want to back up photos flickr was recommended to me years ago 1TB free data.