I own some BTC and I'm not planning to buy more at any price. If it goes to $100 I won't invest more in a dying project. If it goes to $1000 I also won't buy more because I won't be able to afford it.
$100 will not mean Bitcoin is dying. If price decline is a measure of dying, then Bitcoin has died several times. And then rose again like Phoenix.
See how many times Bitcoin has 'died':
http://bitcoinobituaries.com/