I am kinda thinking they have a small inventory of kits, likely bought during sales. Whenever I setup an email notification, it only takes s couple days sometimes before they come back in stock. Plus I emailed them a couple times, and they already had the doner cars on hand, and just needed to...
The Arrma radios aren't terrible, but any RTR radio is going to lack features. You cann spend $20 on that, or spend about $45 on a Flysky GT3 and get tons of features. No brainer there.