Microsoft makes business deals all the time with vendors that try to marginalize Linux, it's part of their marketing policy to do so because Linux is a competitor, but you go on thinking if you want that normal business practices of discounts and agreements not to carry competitor's products or to bury them, among other things, doesn't happen. I can easily see it myself from my position. The only difference is those involved with these "normal" practices don't think of it as bribery, they think of it as "just business". Anything is OK if it's for money, they reason, which is somewhat easy to understand since as a business you are focused on saving money, obviously. A lot of these attempts to sell Linux are nothing more than to scare Microsoft into giving them better discounts.
Regardless, a lot of the current vendors who sell computers with Linux are not giving proper discounts to the prices in comparison to the computers sold with Windows, and I'm really sick and tired of hearing about computers that you can only get if you pay the Microsoft tax, especially on a Linux site. Being able to pay only for what you want to use, and not being forced to pay for Windows, should be a basic freedom for consumers, yet it's sadly one that Microsoft and partners have attempted to remove. Even though Microsoft has a lot of coders, I know as I've been inside Microsoft's "campus" many times, IMO they primarily make their money from their legal prowess, lobbying, patents, and PR in general. If you haven't been living under a rock it's pretty easy to see. You think they were sent to federal court for no reason whatsoever?