With all things X-related heating up in preparation to the "homecoming" to the MCU which is the worst-kept secret in Hollywood, speculation about subjects for X-Men movies has been rife.
No smoke without fire, in all likelihood -- so when X-Men 107 took off, you can bet that somebody knows something. Starjammers are coming to the MCU, and owning a nice copy or three of this classic Bronze Age comic book would be a good idea.
You may already have missed the boat though.
The jump from CCG 9.6 to 9.8 is over $6K. That's too rich for my blood -- and most people's.
But the difference between a 9.4 and 9.6 is under $500, so I'd push the boat out a little and go for the 9.6. Try to get it with white pages.
Don't drop below FN. This book is pretty common in low to middle grades. Higher grade copies don't come into the office very often.