Ever since I was little, I wanted a Famas really, really badly, now that I'm older I still want one, just not as badly as I used to.
Same here. Which is why I really did light up to see one for sale, even though I knew it would be well outside of my price range.
A lever-delayed blowback that uses proprietary mags and can only safely use French-produced steel case ammo?
I wouldn't buy that for a dollar. No way in HELL would I buy it for $20k.
That is logical, for what you would use it for. Your AR is a better MSR.
However, from a collector's standpoint, it is a very desirable item. Very. I could personally see myself (if I had the means) spending $6-7k, simply because of how rare they are.
If I was a former legionnaire... Depending upon how fondly I remembered the rifle and my time in service... I might consider spending $10k. No more.
If I wanted a useable personal rifle for civilian use... No more than $2k. It has 'cool' written all over it, but it would be hard to argue that better rifles are not out there for $2k - or a lot less.