Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
DO NOT OPEN IT! As soon as you open it the platters will collect dust particles and it could ruin any chances of data recovery. Just send it to a data recovery company like Gillware for recovery. Any reputable recovery company will evaluate it for free and let you agree to charges only after...
It could just be a legacy type deal. It's not something that people commonly need so they can charge more for it. RAMBUS memory is insanely expensive for the same reason.
If there was anything important on it I would suggest against the freezer trick. The freezer trick will create condensation on the platters, regardless of how well sealed it is when it's put into the freezer.
If there's any important data on it that you need I suggest an affordable data...