I used to have Manfrotto legs and head (703?), which combined cost around 700€. Legs are fine (same style ENG teams use), but the head was not fluid enough for controlled pan starts and stops. After trying out several heads the cheapest one which was able to do smooth pans in practice was a Sachtler costing 1800€ with basic tripod. In the end I mated this head to the Manfrotto legs, and the Manfrotto head with Sachtler sticks (light but flimsy), to be used for B-cam. This Sachtler head/Manfrotto tripod -bastard works fine. Camera is Canon XF305.
Electronics are getting smaller and cheaper and better, but mechanical things are as expansive as before, and good video heads are surprisingly expensive compared to photography heads.