i like the idea - but only if ballooning is half the issue solved. the other half is wear. if they can come out with a compound that gives great grip and long life, and if the 'belting' also can increase the tire life, i'd pay extra. maybe up to 50% extra, depending.
i think r/c tire prices are one of the most ridiculous parts of the cars as it is.
i'm sure some of the cost involved in bodies are licensing fees - but for 'made up' vehicles that aren't based on a 1:1 vehicle, they should be $5, lol.