To understand the value, look at the episode "Sleepy Time" (Season 1, Episode 10).
Modern remastered versions often "clean up" the animation, which can inadvertently remove the charm of the original cells. Archive exclusives are valued for: spongebob season 1 internet archive exclusive
When fans search for the "Internet Archive Exclusive" cuts of Season 1, they are usually hunting for content that has been systematically scrubbed from commercial re-releases, altered due to copyright disputes, or changed for modern syndication. To understand the value, look at the episode