Did Dexter have any toys? Foster's? Foster's had toys, right?
Dexter came from an era when the network was owned and operated by people who genuinely did love animation. For all the flack he's caught over the years for Captain Planet and cancelling Swat Kats, Ted Turner is one of the best friends that the artform has ever had. Toyetic appeal wasn't that much of a consideration back then if it was at all. Things didn't go downhill until CN was put at the mercy of the guy who had a hefty interest in WB stock and saw their lineup as direct competition for his own network.
Foster's, on the other hand, is a case study of what happens when a network totally loses interest in a show even if it's doing well; they delayed the last episode for about six months after it aired overseas and then promptly yanked the series from the schedule. It's made a few cameo appearances here and there with the most recent one being a midday timeslot, which lasted about a week or two before it disappeared.
Nowadays, the network seems to be run as a vanity project as anything; every scripted live action show tanks? Let's make more. Hall of Game Awards fails tremendously? Next year will do the trick.
It's like that episode of The Simpsons where Skinner attempts to catch Bart playing hooky by going to museums and 4-H.
"Am I so out of touch? No, no, it's the children who are wrong."