You also have to consider the past to see the road to the future. Many rifles are no longer surplus and the value has gone up considerably. While some mountains of rifles are still being discovered, along with their respective surplus ammunition. Garands are no more to be found and the prices have risen, but is that a guarantee that South Korea won't let go of their hidden supplies? Twenty years ago, Enfeilds were selling for a hundred bucks, but they are only 300 now. In twenty years, most things have gone up 3 times the value. SKS rifles were between one and two hundred bucks, They are still that today. In 1990 i had to work ten to twenty hours to pay for an SKS. Now i work less than four hours to pay for one. Marstar sells a $75 dollar SKS when you buy ammo that you were going to shoot anyway. It seems to me that SKS Rifles are substantially cheaper by todays standards than they were twenty years ago. A Mosin rifle was 79 bucks in 1993, they are 100 bucks today.
My point is: twenty years ago, we made predictions of what was available in "our" world. Eastern European countries who were not part of our world then, certainly are today. Hundred dollar rifles from Russia? who could have known? How many more are there and how much more ammunition? Who can be so sure that there are no more stashes of Lee Enfeilds and a mountain of .303 ammo will never come up for sale? Pakistan, India, Turkey, Korea, Maybe even North Korea in another 25 years. How much do these little countries have stashed away? we've seen pictures from Libya and other North African and Arab countries, they have masses of weapons and ammo stashed away. United Nation policies are, after all, simple niceties, but does anyone actually completely comply?
Just when you think everything has been sold, something shows up.