I imagine they bought wunderground for the Personal Weather Stations. They have thousands of people sending them data in real time from their personal weather s

I imagine they bought wunderground for the Personal Weather Stations. They have thousands of people sending them data in real time from their personal weather stations. I bet if someone were to quickly make an equivalent API that collected all this data from these users and presented it in a similar fashion, they'd draw a lot of those PWS contributors away from NBC/Weather Channel.