All 17 of my rp113ip rx have come from the bay - all my 2.4 stuff has come from FS/FT Forum here and I've managed to catch a little better deals. They seem to come in spurts - be none for a while, then a bunch and they're gone again. I use my 3PK to go both ways and will eventually have more than 3 rcs running 2.4.
FAAST sure did make the synth FM tx module and 113ip rxs cheap though, prices on ebay dropped about 50%. I just bash and most of the time its me or maybe one or two others and we've never had probs. Thats the beauty of my 3PK, basically have 3 diff radios.