Because if you actually look through my page, the majority of my adoptables have been for points, and prices as low as 10 points (plus my username has been the same since 2011 or so, when I posted adoptables for trade, offer or set point prices only).
But recently I decided to try making some actual profit off of my adopts if anyone was interested - although i usually change them to points after a while if that's not going to happen. There's usually always someone looking for a certain kind of design, and they may not always have money to pay for it - if that's the case, I'm more than happy to give it up for a decent amount of points.
Sorry if I come off as a little rude - I just want to clear up the misunderstanding here.