Pascal laptops are still the 'new' thing. Price reductions will take time.
Prices will lower when one/more of the following happen:
1. Polaris GPU laptops become readily available and eat into market share
2. Newer hardware is released, pushing 1060 laptops down the pecking order
3. Laptop manufactures decide sales are not as expected & need to reduce the cost to compete.
Just recently, laptops with a 960M/970M dropped below $1,000, and the cheapest 1060 laptops are at or just above $1,500 so it's likely not going to happen anytime soon.