What e-shop in Europe is nice for buying quadrocopeters?

[BoxIT]

Hey guys,
would like to make a notion of the market in Europe for buying professional quadrocopters.
What should I consider before final order?
found rckane.cz and their pricing for different models look quite good.
What are your views? Any feedbacks please?

[Goskin]

IMHO, this one looks really good: RACE COPTER ALPHA 170Q RTF (GR16570.RTF) - Alpha combines speed, extreme maneuverability and a lightweight robust carbon fiber construction. Alpha 170Q allows not only professionals top racing events. For open class races, we recommend 4S LiPos with 450-650mAh.

Will recommend rckane.cz to my friends to buy drones at. Thanks.

[Alexcarter]

You'd better choose Inspire 1 PRO Black edition 2017 limited edition (DJI0612) offered by rckane.cz team.
This drone model is equipped with an X5 on-board camera with a DJI MTF 15mm f / 1.7 ASPH Lens lens with a three-axis stabilized mount, it captures sharp 16 mpx images and stable video recording up to 4K (4096x2160 / 25p). The adjustable arms with motors and landing gear extend upwards after take-off, thus ensuring an undisturbed field of view for the camera within a radius of 360 °.