A) Because while I may (soon) have 135 refined, what I don't have is $70, nor will I ever have. If you are willing to sell your for $20 then we can talk.
B) I found it for 44 keys (not saying where)
C) I already have 10 keys and 20 refined.
But, most importantly, that which is earned through difficulty and toil is more valued than that which is purchased.