How Often Do People Play 3K pts Games?

Hey everyone, as the title says I'm curious how often 3K pts games are played? Seems most of the tourneys are 2K pts. Other than time and money to buy models, why are reasons people do or don't play 3K games? How to think about strategy differently in a 3K vs. 2K point game? Are there more objectives etc? Presume you need a bigger board? Open ended question. Thanks!