Btc holdings

I see many posts about people who finally got to 1 btc or 0.5 or even 0.25, or other posts with people who say they are "stacking sats" . While i understand the concept, what i don't get is what would be the endgame for yall ? Are you stacking btc in order to sell for profits on next bull run? You plan on holding long term? Why some people are saying they are never selling just accumulating? Accumulating to do WHAT with it?