From my own perspective, buying the real BTC and holding it in your own wallet or even staking them on credible DeFi protocols with reasonable ROIs to yield you passive income, is much more better than buying its ETF... For pete's sake what's ETFs even got to do with real cyptos? You're indirectly putting the power back to the hands of the middleman, when you're supposed to be the one wielding the staff of authority with your hard earned crypto. Jeez