It just dawned on me that the OP is probably talking about whether to pay trading commissions in BTC or BNB. If you pay fees in BNB then you get a 25% discount, but you need to hold BNB.
To see whether that's really worth it, check the BNB/BTC chart. I only want to hold BNB when it's in a bull market against BTC. It's been in a bear market for over a year now:
To see whether that's really worth it, check the BNB/BTC chart. I only want to hold BNB when it's in a bull market against BTC. It's been in a bear market for over a year now: