I mean yeah, you will get a PC a bit cheaper..
But then you just ignored everything else, build quality, webcam, speakers, sound, SSD speed, keyboard, battery runtime, screen quality..
With business line for comparable build quality/durability you are not getting half price anymore, and I have not yet seen any laptop speaker/webcam not on a MacBook with comparable quality.
I do not have access to bulk discounts, but you are more then invited to post some samples.