And when you start looking it's fairly easy to see why. At the time of writing the data.gov.uk website had 23,004 datasets available. And it's not just this dedicated source publishing data, agencies such as the Care Quality Commission (UK's Health & Care regulator) publish the names, positions and salaries of all those who earn over £100k. The Police now let you see details of all the crimes in your neighbourhood and the Land Registry release data on all of the house prices paid back to 1995.
Great, but it'd be interesting to see a) how many people are using these datasets and, b) whether we're really making the most of these datasets. As long as your computer has an ounce of processing speed it becomes fairly easy to produce a map of all the house prices paid recently in a particular area (especially when using simple tools such as Batchgeo), useful for those both buying and selling houses...and estate agents.
Whilst people need this high level data mapped, charted and visualised, as the amount of data grows what the world is really going to need, is people not scared of data. Data miners, Data scientists, Data Analysts, Data Visualisers, Data Enthusiasts! Those that can not only show the quick and dirty easy stuff, but those that can pull out the stories that are really going to help improve understanding, find connections, relationships and move things on.
So my advice, get into data...especially if you're in the UK.