Novelty is rewarding in itself, all kinds of novelty (Why did you ride out to the outback? because you wanted novelty of visual and other sensory stimulus as well as novelty in perception of place). Same way why simply driving somewhere new is rewarding. "News" is constant information novelty , it's not like the "olds". Rewarding things have the potential to be addictive. If they are easily obtainable they tend to become so.

https://pubmed.ncbi.nlm.nih.gov/24911320/