Frank, where you get this info?!?
Who told you about these strange prices?
The lowerest price I've ever saw was $285 for piece with 5-digit number without doc.
There are pretty good reasons for price fluctuations.
They are
1) to whom and for what this or that order was awarded
2) doc and/or additional doc's
3) number of the order
4) type of the mint mark
5) posthumous/non-posthumous awarding
etc.
Price of course didn't fluctuate in the diapason of +/- 400%
It is more or less stable. Around $300/$400 and in downside trend (for obvious reasons).
And it's not the number of orders issued that counts - it's the number of cavaliers that actually ready to sell their orders that really counts
And of course there is market for RF awards in RF
P.S. You are right about one thing - the price for fake Courage is quite stable
P.P.S. There is a huge difference between the market for ministerial awards and the market for actual awards The demand for actual awards is out there, although not as strong (to put it very mildly) as demand for soviets orders and medals.