kinda the issue with the nitrorcx, and its sister sites like hobbypartz, xheli.com, and nitroplanes.com (They all are owned by raidentech, as their mailing address's are all identical). The stuff they sell its usually not carried anywhere else (outside the Hobbywing stuff), and when they are out of stock it might take months for them to get it back in stock.

Like a helicopter I bought on last years black friday(or maybe the monday after I forgot not that its important) worked great till it crashed, and lost a stupid part off the blades that stabilized em. Found the part number, but the only place I could find that stocked parts for the heli was guess who xheli.com, and that part wasn't even in their list of what they sold. Went through every part for that heli they carried(which were not many at all) and couldn't locate it.