ok, let me try to explain the cup from european point of view
for top teams in europe, those who are chasing the national league trophy, its just a comfort trophy... consolation prize
if you win the league, you are the champion of a country. if you win the cup, you're well, just the best team in a knockout competition environment. nothing more.
but this trophy means a lot to a smaller teams who never won the league, especially if they are from lower division, means a lot to a teams that didn't won the league in decades, or teams completing their rebuild and and highlight their candidacy for the league trophy... and those who wants to prove their dominance, something like: hey, we got double crowned!
imagine if the kings win it. nice thing to achieve, right?
imagine knicks win it. they would claim it as most important trophy overnight.
i personally don't pay a lot of attention to a national cups. ok, in basketball those final 8 tournaments are played in february, 3 or 4 months before league ending, so you will pay attention just to see current shape of the teams.
if you think it's just about cash, no, you're wrong.
i was watching interview with some retired serbian soccer player who spent most of his career in italy. so, his sentence:
- i moved from lazio to inter at half season, played all league and cup matches for lazio in first half the season, at the end lazio won the national cup, they could send me at least half of a medal but ok, nevermind...
and i'm thinking, dude, you won several italian leagues with both teams, you even won fckn UEFA champions league and became a champion of whole europe and here you're whining for some sorry ass national cup? with a club you won EVERYTHING.
idk, is it hunger for silverware, making your own home exhibition/museum of medals... it is what it is
so that's how it goes in europe, different competitions, two or three trophies (not treated equally), you're fighting for different things.
far as i heard, NBA wanted to break that monotony that occurs in mid-season, like december/january, and i'm happy to see NBA implementing anything from europe. so, let see how it's gonna pan out.
PS. now, why cup actually exist is a long story, we need to go to 19. century england to explain it...