FS1 port is finished (they are working on silent threat reborn though), and is up to version 2 so you don't have to get the original unless you need to see the movies from it.
also you forgot to mention alternate modding like the incredible babylon5 project and numerous WIP's like Starwars/startrek/Wing Commander. Plus at any time there are like 10 main story campaings in the making...
Please mention that in comparison to other games of its type it is the easiest to mod for as I a completely unskilled person can attest to it!
You could mention a reatail search at Schoolpop.com (type in by hand: Freespace 2) and there are two merchants who ordered new disks to be run 2 months ago! One sells it for $29.99 and the other for $19.99
That's about it, bang up job though!