Classic Studies on the Historical Jesus (12 vols.) pricing??

OK, I know mistakes happen and if that was the case, fine.  Last night Classic Studies on the Historical Jesus (12 vols.) was at like $90 and today it's back to a reasonable $30.  

The reason I call $30 reasonable is simple: I'm trying to compare it to other "Classic Studies..." that have come forward in this past year.  

I didn't fool with the $90 recommendation, but simply bid what was the max I would personally pay, which was $40.  Then this morning it was recommended at $30, so I reset my bid to $30.  While I didn't bid the redonkulas $90, there were others that did; I could tell because the "think red line" was bumped a bit upwards around the $80 mark.  I almost came in here last night and put a post pretty similar to this asking everybody to take note.  

I am just curious and I would like to ask a Logos employee to please explain the "behind the curtain" scene of how all of this went down, if you can.  

Thanks and you guys are doing great work!