Cookie Monster
THINK TANK
Below are some of the estimated UNIT PRICES of some of the most popular UCAVs around the world...Armenia had decent air defense minus the strong airforce and you get send F-16s or what not after each drone that pops up. In the end thou would be straining your own resources by doing that.
Pakistan doesnt understand the importance of drones even after getting beaten to pulp with them.
Wing Loong II: ~1-2 million USD
CH4: 4 million USD
Predator: ~4 million USD
Reaper: ~16 million USD
Bayraktar TB2: ~5 million USD
Elbit Hermes 450: ~2 million USD
Elbit Hermes 900: ~25 million USD
Not taking into account other associated costs like ground stations, possible sat links(otherwise drones can only be operated with LOS), training, etc...still u can see how expensive these drones are. These drones lack stealth features(those cost even more)...they can be picked up on the radar quite easily and they can be shot down with something as low cost as MANPADS. In heavily contested and monitored areas...like India/Pak...not even a tiny quadcopter can sneak by easily. Pakistan has shot down several in the last few years.
The example u keep bringing up...of Armenia. The fighting is going on in Nagorno Karabagh...which is a very mountainous area. This is one of the reasons why Azerbaijan can't simply just roll through even though it is stronger than Armenia. Any dvances will be slow...and will favor the defending side...with attacking side taking heavier losses...
...that same mountainous terrain makes it harder to have radar coverage everywhere(for both sides).
As for Pakistan getting beaten to pulp with drones...
...while I don't have solid proof...I'm fairly certain that Pak government ALLOWED that to happen...whether due to American pressure or threat or whatever reason. Pakistan has both the capability to detect and shoot down drones...and yet it never did...not even once...and it had hundreds of chances. IMO Pak gov couldn't own up to the fact that it was allowing US to do that...so it wouldn't draw the ire of the militant groups that were being killed with drone strikes...
...nor allow those groups to simply walk free due to US pressure. This basically meant looking the other way.