People often ask me after I explain bitcoin, It sounds great... , but who takes it? This is an interesting question. Take the first credit card. I quote wikipedia.
The first credit card charge was made on February 8, 1950, by Frank McNamara, Ralph Schneider and Matty Simmons at Major's Cabin Grill, a restaurant adjacent to their offices in the Empire State Building. McNamara was bought out two years later by department store heir Alfred Bloomingdale,
After this credit cards filtered down slowly to the people and to smaller and smaller merchants.
Unlike this Bitcoins are taken by everyone who downloads the client or simply opens a myBitcoin account. The next step is to get more and more businesses to take it. Smaller merchants is where it seems to be starting. It is a grassroots phenomenon from the bottom up, instead of top down like credit cards.
Also I guess when the miners started the difficulty level was low what they got out of it was 50 coins of something that started out as play money. Now a few years later this play money is actually worth around $100 million USD. This could be compared to currencies that started out as serious money such as the Zimbabwe Dollar and the Weimar Republican Mark, that ended their lives as play money.
I often ask myself is Bitcoin ready for primetime?. When I want to impress someone on how it works I have to, I repeat, HAVE TO use myBitcoin. I get them to open an account and then I send them some money. It arrives quickly and these people were on the phone and all over 1000 miles away. They liked that. I did not tell them that you could download a client that was almost unusable for over two hours as the block-chain history came down to their computer. I did not send money to them from my client to their myBitcoin account as this takes what seems like a very long time to someone used to using debit cards. I suppose the POS systems will have to go through an online wallet in order for the customer not to hang around for 15 mins.
Im still very hopeful that we are witnessing the beginning of a revolution.