Every seismic observatory should have a few broad bands, they are truly things of wonder. Works of art. The Cadillacs of the seismic world.
But having too many broad bands is counterproductive to real-time monitoring. Like driving a Hummer in an urban setting, painting your nails before going on a climbing trip, or buying a mower to sculpt your Chia pet.
The Seismo Guys recommend installing a few well placed broad bands and plugging them into IRIS or GFZ to help your neighbors locate regional and teleseismic events. But when it comes to local monitoring, density matters most. Take Panama for example:
So invest wisely and go for the maximum number of short-period stations to ensure detection SPEED and accuracy. Only then will your automated processing system beat the USGS to the punch 😉