While that take is correct in 98% of circumstances, this isn't one of them for a couple of reasons. BG3 has enough content at release to play for several years and have different experiences each time. The fact that it's getting free additional content is more so because of people making the game popular in it's first year, showing that CRPGs aren't dead, etc. The game won literally every GotY award, for crying out loud.

There's not a ton of other games I'd say this is bad take, but you know, it's like complaining about Terraria or Dead Cells or something. At some point you get the game and you return to it periodically.

The only two reasons to put it off? You're too poor or you don't have time for a 300+ hour time investment. It's not gonna get a steep discount anytime soon, though.