Hi Cappy

I subscribe to Navigraph and get monthly updates for my Addons like Captain Sim 757/767, FSC8.6, a bunch of other addon aircraft etc...

I guess it depends on whether you want or need to keep them updated. Without updating them you can still fly anywhere anytime on any route you want to. I suspect that if you fly for a Virtual Airline, it is a must to keep them updated. I decided to pay for the annual package for €20 or ~$AU30, and that gives me 13 updates at a cost of $AU2.30 per cycle and I consider it to be worth it. At the end of my current package, I'll most probably buy another annual package.

Mark