So I used the search function and found some people discussing Tau Sniper Drones but it was a few months ago and I didn't want to necro sooo....
With Tau Sniper Drones squads having a 2+ Cover save parked in area terrain, would it be worth it to take the 3 squads and park them in a corner or both corners as area denial? With some marker light support they could possibly light up some out of cover marines. So while you take up a slot that could be used for Rail guns, you get 9 S6 AP3 shots and 3 marker lights all with a 2+ cover save for 240 points.

Plus with the target locks the shots can be dispersed however you like and the
ML can be used to support the rest of your army!
Sure they have the draw back of dispersing to the wind if the controller gets sniped, but this is the codex with the space pope. And they don't help with horde armies, but Tau have enough S5 to handle them don't they?
Especially with the decrease to the amount of vehicles being used in 6th (I haven't played hardly any games but that is the gist I am getting from the interwebz) taking up a
HS slot doesn't seem to bad in lower point games. I am thinking that in most of the book missions they can either help deter encroaching enemies or help control mid field with their range, setting up fire lanes and all that jazz....
So what do you all think? Snipers viable? Only at certain point levels?