I most certainly would not waste my guld on a 10 hit milla. I did a shit ton of HBR to get it and I plan to have more hit, even if I'm hunting forever. Anyone that makes 10hit GM imo either has 2 guld (because they have been hunting hit and got without) , doesn't care and just wants the GM for collection/not prepared to hunt just for falz inv, or is wasting their only guld unknowingly thus wasting (but how many people get guld without hunting it for a long time? Shyn in our hbr months ago, damn he made 0hit GM, rip). Imo It's utterly pointless to waste your guld... But i can understand people not wanting to commit to a decent hit one. I cry for every 10H GM that may be made... At least it's still got decent ATP, even though outclassed.
Also, I don't think people own multiple guld. I don't think many even own a guld. Like less than 10 people afaik.
Anyways, an items use isn't equivalent to its value.
I'd say about 5 pds for 10H Mil.