Well...my experience with bitcoin transactions fee hasn't been good at all. You can imagine then when I wanted to send just 20$ then I was asked to pay $10 as the transaction fee and it will even take hours before it could get the needed confirmations. But recently, I just noticed that, even if you want to send $500million, you'll be asked to pay just less that $0.05, this is really incredible and I don't want the fee to go higher again rather keep decreasing.