Vamm - 5:24 pm on Oct 19, 2010 (gmt 0)
Because you are planning on getting money by these links (links -> SERP#1 -> money). Even if you particularily are in the wemastering not because of money, there are a plenty people who are. There is no reason not to sell the links to the highest bidder.
However, if you are not for money, the links are much easier to obtain (at least for us).