I have NPM, but not VNQM.
One of my team members is concerned about jitter between two WAN sites that causes problems for viewing videos between them.
I did a cursory search of Thwack and came up with a page that briefly says NPM won't monitor IP SLA's, and that VNQM is required (Cisco SLA monitoring - SolarWinds Worldwide, LLC. Help and Support ).
If you know of a way around this, I'd love to learn how NPM can monitor IPSLA's (perhaps with uNDP's?) until I can purchase VNQM (another year, due to budget status).