It is interesting to see the costs as they aren’t too different from here, though queens are cheaper in New Zealand, and buying boxes of bees to dump into your hive isn’t a thing here.
As others have said here, why was it done? Hive vandalism is a thing all over the world, but it’s usually a few hives knocked over or mass damage by stock. Messing with 50 is unlikely to be much fun.
Edit: The story linked here isnt complete or very good. Yes, most the hive equipment looks salvageable though the bees are now dead. However a storage shed was broken into and vandalised, gear was smashed. Extractors and processing equipment can be very expensive and it’s a hell of a mess in there. The focus on the bees is likely because that’s what the beekeepers focused on. Having 50 hives killed when you have nursed them from a frame or 2, saved from disease, wintered etc would be heartbreaking. Yes, an extractor and store shed could contain very expensive gear but it’s soulless steel and tools.
http://siouxcityjournal.com/news/local/vandalism-destroys-ha...
https://www.google.co.nz/amp/whotv.com/2017/12/29/vandals-de...