I first bought a DXS transmitter + Receiver (AR410) combo when I got started with this hobby. I only recently learned that the DXS transmitter is not programmable, so I am looking to upgrade my transmitter. Since I already have a Spektrum receiver, I would like to stay with the Spektrum brand. A friend of mine from my local airfield suggested that I buy a DX6 transmitter. However, it seems that the DX6 is discontinued. Are there any similar quality, programmable transmitters from Spektrum that below $250?