If, on the other hand, this hardware mounted on one of my buildings can cover my 70 acre farm and a bit of the valley around it, I could find a use for it.
Maintaining one radio is one thing, maintaining ten of them is another. Each one has a battery to worry about as well, can go bad, can be misconfigured, etc. Whereas if I have one radio on the roof my house or barn there is less to go wrong.
There is also no promise adding more nodes to a mesh network will improve performance since the nodes can interfere with each other. There is a huge literature on mesh networks because the area gets huge amount of military funding, and maybe the military really can use them, but I think they are a solution looking for a problem in an environment where people act as if wires were ritually unclean.
@PaulHoule those are some good points. I would've agreed up until recently, but the newer IoT mesh radios have gotten surprisingly robust. The frequency modulators and collision detection baked into the last few iterations of lower cost IoT chips (like DigiMesh/Nordic chips) really have improved. We've been using DigiMesh 900 MHz units in a greenhouse setting with great success (especially compared to 2.4GHz which drops packets with abandon), with no measured packet loss to date. Pretty sweet!
To wrap that up, low-throughput but hi-scalability mesh networks combined with better firmware, network configuration, tuned mesh protocols, and proper software support to make the "throw a few of these down and forget them" scenario a real possibility. Check out the Beep networks blog for a longer explanation: http://blog.beepnetworks.com/2016/09/messy-networks-for-the-...
Big on words, but not speaking about others ;)
I'd suggest anyone interested in LPWAN (be it Sigfox, LoraWAN or else) to get its own idea by field testing. Talk is cheap. Sigfox coverage is available in 25 countries, including some large US cities (SF, NYC, Chicago, Atlanta, ..) http://www.sigfox.com/coverage
Get in touch if interested by more info about Sigfox, solutions for developers, etc.. http://makers.sigfox.com