These are just a few points where Bitcoin fit (nothing to do with ACH).
1) Bitcoin can be considered a decentralized currency.
2) Bitcoin has commodity like properties. As it happens to all commodities, its supply is limited, so I consider it "sound money" (unlike fiat currencies like dollar or euros).
3) In cases of war, hard political distress, "corralitos", etc. your money will be safe, unreachable by governments (much better properties than gold or silver in this particular point).
4) International transfers, including remittances by inmigrants, much cheaper than traditional banks or Western Union.
And the list goes on and on...
1. Yes, for exchange, as long as the centralized idea that it *is* one is maintained by consenting parties. One need only witness what happened in 2008 when credit default swaps became the phony insurance they always had been.
2. Commodities generally have intrinsic value, for example, wheat. What can I do with a bitcoin other than exchange it?
3. Your money can be made unsafe by being made worthless, something a government can easily achieve without touching it. Hell, I can give it negative value, if I find you in collusion in the bitcoin network or hoarding bitcoins I'll shoot one of your children in the face. Don't be naïve about that. For that matter just call it counterfeiting, that's been a capital offense here and there throughout human history.
4. Banks and currency exchanges definitely feed mercilessly on captive customers. Alternatives are good. There was a time when the real (low) cost of funds transfer within the U.S. was less accessible to end users, competitive pressures have reduced this at least for some customers. Bitcoin does add something to the competitive landscape.
As I said. First, Bitcoin is global.
1) I don't understand your point here. By "decentralized" I mean, Bitcoin is based on Peer to Peer technology (P2P), so it hasn't got a single point of failure. This fact makes it, in theory, more difficult to the attack of hackers, and definitely much more difficult to bans by government decree.
2) You can exchange Bitcoin for fiat money at exchangers, you can buy hundreds of products online (food, IT services, books, etc), and as I quoted in my previous post, you can transfer wealth around the world very fast and virtually free, protects you from Quantitave Easing of fiat money, gives you the freedom to leave your country in case of war even if bank accounts are blocked by a "corralito", and so on. So, yes, Bitcoin definitely has intrinsic value, in some aspects is even better than gold or silver.
3) Governments will have a difficult time destroying Bitcoin by decree, since it has world-wide scope. However, as far as I know, Bitcoin developers are striving to make Bitcoin legal and regulated.
4) Agree, Bitcoin offers fast and low fee transfers.