Shhhh! Be smart inside your own head
Well, for one, instant transactions is not such a killer feature in itself. In many cases users are quite alright with waiting 30 sec for confirmations. Besides, NXT might actually make something working, who knows, they have plans for "instant" transactions too. I am skeptical, but that doesn't mean they can't do it.
Copycats take all your work in an instant, so they immediately negate any technological lead you have. And investors don't mind jumping from coin to coin. How many here hold both NXT and NEM?
So with copycats, it's difficult to retain any lead you might have. Our species likes everything new just because it's new.