I gotta agree. Seems like for rifles as you move forward through things that might get surplused we're about done buying up most of the surplus bolt actions the world had lying around. As mentioned earlier most of what's left is select fire which we're simply not going to get imported for any reasonable price.
Where I think the surplus market lies for the future, if it does continue, is with handguns. Militaries and police departments still replace aging handguns, and (so far) military handguns are about the same as civilian versions, so there isn't the same cutoff point as with have with the long arms (ie, when the militaries of the world went to full auto). What worries me though is that importing of surplus arms has been seen to be very profitable by American businesses, and most arms are retired long before their 50th birthday rolls around. It seems like many of the surplus handguns that are getting imported in large batches, even if they are price reasonably, still don't qualify as C&R pieces. I know I would have bought a PA-63 LONG ago if I could have used my C&R.