Submitting to Yahoo’s main directory leaves you no choice but to choose the paid or non profit option. So how are these people selling guaranteed submissions so cheap? Well, I’m sure a few of the people may know someone on the inside. Others have just realized a loophole so to speak.
The Yahoo Directory has many regional directories. Yahoo Canada is just one example of the many regional directories available. If you go to these regional directories and try to submit a site, you will notice they have the 7 day guaranteed consideration option ($299 a year) or a standard free submission. You will also notice they do not make mention of non profit businesses on the page. Therefore, any commercial site can be submitted free of charge using their free standard consideration option.
It is quite common to see directory listings in Yahoo’s main directory included in their regional directories as well. The same applies if a site is first submitted to a regional directory. Of course the editor has this authority to push your listing to other regional directories, and that outcome is dependent on them.
Yahoo Canada is one of Yahoo's many regional directories that accepts free submissions. So Yahoo Canada does not get slammed with submission requests, consider submitting ot a different regional Yahoo Directory instead. Here's a few to give you an idea (submit to only one):
http://uk.dir.yahoo.comhttp://asia.dir.yahoo.comhttp://sg.dir.yahoo.com