watch these videos... they help compare
YouTube - SpeedTrapHunter's Channel
I would consider the Escort Redline too.
Also Rx65 RED is at amazon now for like $240. I run with a rx65, mostly cause I am just not smart enough/rich enough to understand all teh V1 firmware updates etc, and from what I remember (at least in a past firmware) V1 is awesome at X band, which I rarely encounter outside NJ.
Lastly, I'm in VA, and with teh RX65 I can whip the detector down like a bolt of lightning. V1 takes a little more time.
all that said, and the flame war that might erupt, buy a V1 :P