Just to clear something up from the developer end ... this is not how things work. The factors in determining whether or not an IP is revived for a sequel, ported to new hardware, or reprinted have basically nothing to do with the secondary market. When publishers greenlight remakes, remasters, ports, upscales, or digital versions of products older than, say, 10 years - the secondary market value is, at best, a marginal consideration because it is extremely niche. The number of people purchasing your game, by any means, after that amount of time is an effectively meaningless number. The publishers run market research against current trends, current consumers, and current competition. What's the price point compared to other current similar titles? What's the popularity of other current similar titles? Based on current consumer trends (in the primary market) what is our projected sales? We don't look at Ebay and see our older titles selling for +$80 as indicative of massive consumer demand, but as massive supply constraints. The number of games selling at that price point is extremely small and not indicative of actual market demand.
In fact, if anything, emulating the game and keeping public discussion about it active - either through Youtube videos, speedruns, Twitch streams, forums, etc. - does far more to compel publishers to bring back older IPs to new hardware (because that's areas that their market research will actually hit) than seeing the last 10 new copies in existence sell for $200 on Ebay.