Next year I am looking to get some new stern machines, but haven’t been in the hobby long enough to know how long you can get a NIB stern after its initial release. It doesn’t seem to be consistent. Any ideas how long I’d have to still be able to purchase a new Deadpool Pro, Black Knight Pro, or Jurassic Park Pro? (Plan to get DP first, might be waiting on the second and/or third machine until some time in 2021)