We pay all of the costs a business has to pay. We're self-supporting.

I kind of like this one. I think it's simpler to operate, and it's simpler to read. But I would rather have my old one.

You might find it on the Web for (cheaper). You can't always be the lowest price.

A textbook has a very short life. I'm sure they have compensated for that.

The most expensive book I bought was $10. It's all relative to today's market.

They are expensive - I don't deny that. My heart skips a bit sometimes when I see them come in.