So it depends. For example in Argentina, they AFAIK have two conversion rates. When you use a normal bank account, you have to use government conversion rate th

So it depends. For example in Argentina, they AFAIK have two conversion rates. When you use a normal bank account, you have to use government conversion rate that's 50% of black market rate between Argentinian pesos and USDs. With Bitcoin, you could try black market straight away and even if you pay 2-5%, you might end up better. For transaction rate, Trezor says at 22sat/B., you will have your transaction confirmed in 4 hours 10 minutes for $1.85. Even if BTC price was stable, I would still use it. But my experience is that having some BTC is usually better than just having cash.