This got me thinking: Rewind 25 years, I can easily imagine 15 year-old me sinking DOZENS of hours into playing this "game". I remember I put much more time than that into a free game that came in a box of cereal[0].
Today, I loaded the site up and spend about 30 seconds on it before deciding "this is cool!" and moving on, probably never to return.
What changed? I guess it's a mix of: (A) How I value my time. (B) The bar for "what pulls me in" in terms of gaming. (C) Some other factor around me just having already burned enough hours on games.
I'm not really sure how much each factor contributes.