My group of friends and I saved as much money as we could make, managing to scrape together I think a total of 50-60 million total between the 8 of us, so it's not entirely impossible, though since making that money the market has crashed and the methods we used to make all that money are not longer viable... or as viable because market board prices very quickly plummeted as the pool of gil continually diminished into gil sinks.
If a group of 8 or so people can manage to obtain that amount of money without that much effort I'm sure some of the much larger FCs can afford the 315 million quite easily if they are as dedicated to it as we were.
Still, with that being said I think that the prices they currently have are a bit unfair and they really shouldn't have considered server economics, it should have merely been a flat price across the board for every server that was obtainable regardless of whether you were Legacy or not.
If a group of 8 or so people can manage to obtain that amount of money without that much effort I'm sure some of the much larger FCs can afford the 315 million quite easily if they are as dedicated to it as we were.
Still, with that being said I think that the prices they currently have are a bit unfair and they really shouldn't have considered server economics, it should have merely been a flat price across the board for every server that was obtainable regardless of whether you were Legacy or not.