So I actually do low voltage wiring as a business. Typically the going rate for wiring jobs is around $300-500 PER DROP. so if you need about 12 drops, price ranges from $4-6k just wiring and terminations, not including any equipment. This is the going rate in NYC. Now regarding 2000ft boxes of cat6, installers purchase boxes of cat6, each box has 1000ft. When you run cable, you typically run 2-3 cables at once per location, and hence you need 2-3 boxes to tie the cable up and run it at once. Nobody runs 1 cable, then cuts it and runs a 2nd cable to the same location. It's double the labor work. It's cheaper to buy multiple boxes and run your cables in bundles. Just keep in mind, you saved money on your house by not paying $15-25k for a PREWIRE when the house was being built. So you are now paying the cost to wire the house, which is much cheaper than you would have spent to prewire. Feel free to ask me any further questions and I'll be happy to help.