Tamiya and Kyosho were the brands I started with in the hobby many, many years ago. In fact, I am hoping to do an "ode to" RC build of one of Tamiya's rides.
You're thinking of some other higher end racing breed RC manufacturers pumpin' out platforms every 5 weeks. Team Associated's newly revised platforms are being pushed out, and marketed every 6 weeks... (sarcasm) 😜 .