Nesco are known as a good dehydrator manufacturer. 700 watts seems more than enough to get the job done. You could go cheaper, like the unit I have, but saving $30 is not a huge factor to consider. I like having a book because that's my culture ( I own a hundred cookbooks). It is handy not to have to turn on the computer and do the search when you are working on a recipe and need to check something.

If your budget will allow, go for the Nesco and I am sure you will be pleased.