It's closely tied to Core Set 2021 they share a lot of content and release near one anotherbut Jumpstart is a stand-alone product
The most interesting cards, those that are most liked by the players, tended to be those few in the homemade cube that were designed top down, as inspired by something non-mechanic based, be it a name I thought of, an artwork I stumbled upon and liked (the most common of the routes to a top down design in the homemade cube project), a tribute I wanted to make, or just some random concept I had
Can you Sacrifice the same creature twice
This led to players preferring Beta prints over the Alpha ones, which can contribute to the large gap between the two printings
Although not all cards are valued at quite that much, it still shows that there is a player-based market involving hundreds of millions (according to reddit, almost 3 billion) dollars worth of cards