^ This
The only thing that seems to bring down prices of games is an official re-release (with no distinct changes to the product). IE, If the NES Classic Re-release meets demand, we'll see scalper prices plummet. So unless Nintendo releases a whole bunch more copies of Little Samson...not likely...that cart will still be of a high value to collectors. Typically "collectors" drive up the price, not players.
In fact, a lot of collectors will not even play their super rare/expensive games. They'll either emulate, repro, or flash cart games like Samson, Hagane or Sculptor's Cut. Why risk damaging a game you paid more for than a console? Or in some cases, a cheap car?