I think that's because the 1st print has only a 5,000 print run where as the LE version could have 10's of thousands if not a hundred thousand.
If that is so, then there should be a 15/1 ration of the LE edition comics compared to the normal edition, but it's almost the other way around. Puzzling.
I understand what you are saying but the comic had a direct route to market so that will be the case. In the long term I think it will correct itself. Something to take into account also is Sony could produce more of the LE at a later date, it's not uncommon in the games industry.