Customizable trucks. For example, order a stock kraton with outcast (backflips) tires. Or, a typhon with truggified A-Arms/tires. There are too many customizable features to name off. Most importantly though, having a built in gps speedometer, voltage meter, ESC programming card, rpm meter, temperature guages on motor and esc, and a smart wifi controller system like Traxxas (LOLOLOLOL- don't do this you'll get sued again by those haters). Vent tires from the outside/not inside. A tower to tower brace would also be a very cheap and easy upgrade for Kraton/Talion. All of these upgrades I've mentioned would cost maybe $20-30 which most people would definitely pay for! Lastly, shock towers should have more travel for dampening. Even without any of these upgrades Arrma is my favorite by a long shot, amazing products and ok customer support. Still waiting on an 8s basher!!! Like a slightly larger Kraton with large rubber tires that can be inflated or deflated depending on the type of run you want to do