The future looks pretty solid to me. Despite all the fluctuations it seems that Bitcoin market is capable of standing up and hold a steady market price which will eventually lead to large scale adoption.
I have recommended BTC for my friends, and keep the coins for the future and not convert it to dollar unless they needed the cash urgently. People are taken by surprise by bitcoin's volatility.
When I first heard of bitcoin, I think it was selling for about $60, and there was some noise about people calling it a bubble at that, and the price was likely to crash. I didn't buy any.
yes you can. you can even send multiple bets in a single bet address as long as the event is not over and still available but the odds may differ a little bit