Instead of stopping, you rationalize spending moreIve already put in this much, might as well go all in. This is exactly how gamblers spiral deeper into their addiction, and its why Pokmon cards can be a dangerous hobby if not approached with discipline
The ability to choose between wiping all dragons or everything else lets you break board stalls wide open while leaving your creatures untouched
On the flip side, this also means that its a crowded and still-evolving market
Having it on a stick is greatif you dont need to sweep out the weenies, it can still swing, block, and sacrifice to deal an extra 2 to finish off a creature damaged by something else (perhaps from combat)
This makes it a modern day collectors gem, and as you can see, its worth thousands