This is the right attitude. If you truly believe in crypto then this shouldn't be seen as btc falling, but as a way to get in crypto for a cheap price.
Nobody knows what will happen to bitcoin and the altcoins. But I rather lose $1000 in bitcoin than not being invested at all. It's not only about making money, but supporting new technologies.
For me Bitcoin - representing cryptocoins in general - is a way to get rid of banks. We don't need them anymore. Bitcoin will cause new problems, but I rather deal with these new ones than with the problems banks cause(d).