So I am looking at buying an Emaxx very very soon and I have seen mostly two receivers that come with them. The TQi which has the iPhone dock and all, and just the TQ. My question is: Is it worth getting the TQi? What are the main differences? Right now the prices are $419.99 with the TQ (Amazon) and $449.99 with the TQi (Buy Traxxas). Any help would be great! Also if there are websites that have cheaper prices I would greatly appreciate a link