That's great. I'm glad to see most recent datasets have a time series classification. Should be good for time-series databases domain. At the end, it comes down to what questions you want answered with available data. Take this one for example.

http://archive.ics.uci.edu/ml/datasets/ElectricityLoadDiagra...

I know that the Bay Area police used to analyze power load curves to figure out people growing weed :)