what are your opinions ??
I haven't tried the Blade 450, but have experience with the Blade 400 vs several Trex clones.
The Trex wins hands down..
I'm not trying to talk you out of buying a genuine TREX kit if your heart is set on one but don't discount some of the clones available.
all my 450 Helis are TREX clones and two of them have over 1000 completely flawless flights in over 3 years..
All of them have well over 500 flights and I just can't fault them in anyway..
You can get one in the air for about $120 plus your radio..
I fully support your choice of a DX7s, I have a DX6i, two DX8s and a DX7s and for some reason use the 7s 90% of the time. I just love it.
The DX7s and the DX8 both have beautiful silky smooth ball bearing gimbals.. after flying with them, the DX6i feels like it has sand grinding in the gimbals.. (Though it has been a flawless radio in all respects.. just built to a lesser budget... )
Get the Lipo battery from Hobbyking
and the 7s will run for 40 hours between charges.
Anyway, good luck with your TREX, I know many will try to talk you out of a clone or tellyou they are junk, but for me they have been brilliant...
A couple of vids....
TREX 450 Clone from Hobbyking - Kit $59 - Servos / motor / ESC / Gyro - $150. Over 1200 flights zero failures with this heli.
This heli kit was $9.99 Yes TEN Dollars... Cost me under $100 with all electrics... Now also over 1000 flights.
I also have two $900 Gauis including a super X5.. to be honest I can't see the point in paying that much again when the clones give far more bang for buck... Just my opinion..