I don't use SNMP neither do any other operations people I know. Its interface is complicated, hard to navigate and a pain to manage.
It's still used for network monitoring since that is what routers and switches talk but most people use something else for everything else.
I've see Ganglia, NRPE, Munin, custom servers and my personal favorite: bash scripts with graphite.
None of these quite match what Amon is trying to do but they all can get you an approximation of it. I'm personally going to have to look more at Amon. It might end up installed shortly.
