It’s not that 100k sats won’t be valuable, it’s the idea that fees may be alot higher so you’ll incur those on moving your 100K sats. It’s all a balance really. If you feel 100K is fine then make that your minimum. Personally I manage my addresses differently.
Discussion
You just don’t want tiny amounts stuck due to rising fees if that happens. Also managing addresses is just a good way to know what you’ve got where