I recently bought Earthworm Jim SNES 100% complete in great condition for $75. It seemed reasonably priced in my opinion. To compare, I went back to some advertisements from BRE Software in a copy of EGM from late 1994. The game was selling used, complete for about $39 if I remember correctly. adjusted for inflation, this is about the same as what youre paying in 2018 for the same item.

I tracked the price all the way through early 1997. It got lower and lower of course and then once N64 was competing full swing with the Saturn and PS1, prices for 16 bit titles disappeared. so theres a span of about 20 years where the price of Earthworm Jim is hard to track but we know what it was during its initial run and then more recently with the advent of pricecharting.com

how do we go about filling in this gap?