Dude, they still make remote-controlled vehicles/robots, electronic toy instruments, there's...ok those are the ones I consider fun and productive for a kid to play with (don't think battery-powered dolls/figures with sound effects are all that productive, to try and convince you of their value - compared to non-battery-powered dolls/figures).
But regardless, the point is there are cool toys you can give your child, that use batteries, which don't simply use a digital screen.