Before the 22 shortage I was selling Super X boxes of that era for @ $8 a box, a brick of Remington like the one you have might bring $60 though I usually broke it down to single 50 rd boxes as they were easier to sell. You have to get a little further back for most 22 boxes to have any significant collector value.
In the current market of shortages they will probably still bring about the same amount or slightly more though more people will want it to shoot. I've shot up quite a few partial boxes and some of the rattier, scuffed up ones I had. Unless they've been subjected to really bad storage old ammo of this type is usually still accurate and reliable shooting stuff.