This level of inattention to language makes me think that not many neurons were fired during the writing of the article, and prejudices me against what might be a perfectly valid point, if I could find it.

Yes. Say the marginal cost of a good is $1000. The fixed cost of developing the product was $900,000. There are 100 potential customers. In order to break even, the average sales price must be $10,000. But let's say that some customers can afford to pay $50,000, while most others can only pay $5,000. Without price discrimination, the product simply would not exist. If you charged $10,000 to everyone, the smaller companies simply could not buy. But if you price discriminate, and charge the small companies $5,000 and the big companies $50,000 you can cover your fixed costs and break even. Everyone wins. The producer makes money and both the small customers and big customers get a product that otherwise would not exist.

Also working with hnuser://jasonlbaptiste on Ramamia (beta), which lets you keep in touch with your family. http://ramamia.com -- as well as status updates for sports games at http://tickrtalk.com (we were launched, but the data source pulled the plug on our API access...)

...and Classleaf, http://classleaf.com - bringing education a bit more into the 21st century by helping teachers create class websites, with homework, test and due dates, events, file attachments, email lists, pages, and more, and class tracking for students. (You can tell I say that pitch too much.) Mostly managing sales staff (they're working on commission, $1000 per sale) to make sales to high schools primarily.

Lastly, working to study/improve SAT/ACT/SATIIs/my abysmal GPA so I can actually get into a decent college come this fall... sigh. Anyway, overview's mostly at http://markbao.com.

Yes, there are other whiteboard paints. This stuff is different, and far superior. Dry-erase marker comes of instantly. No residue at all.

It's some kind of epoxy or similar material, with a separate catalyst which is mixed with the paint. It forms a very thick, incredibly hard surface.

Yes, the price is quite high. That sucks.

The odor also sucks. It smells like superglue for a day or so after installation. The whole building smelled bad for a few days. After a week the smell disappeared completely.

It's also very high-gloss. This was a big disappointment for one of the rooms, which has a projector aimed at the whiteboard/wall. The glare was awful.

On average though, it's a good product. It makes a fantastic whiteboard.