but there is no doubt in my mind that it would've come anyway within a year or two
This may, or may not be the case. Had Hoyt not made the bold move they did, I wonder if the other companies would have? Darton makes a decent bow but, never seemed to get the public overly excited about them. Hoyt did. Only time will tell re: the fate of single cams. But I don't see them going away anytime soon.