Usually in a split the losers implement replay protection and Craig did it first. The price also says a lot about his coin. It's trading for 50% of BCH price. There's still a chance for SV buyers to make some money. If Bitcoin goes up in value it will take even the most worthless forks up with it.
not necessarily. in fact most of bitcoin rises have been accompanied by altcoins dropping hard since every trading in the cryptocurrency market would rush towards bitcoin whenever the price of it is rising so they have to dump their altcoins and gather up all their funds to put in bitcoin.