Submit articles with or without Links?

Hello, my name is Joel Moses. I am new to IM. I have been flowing the Warrior Forums for a couple months or so now, but this is my first post. I have really liked what I have seen. This seems like good people helping out good people. I am sure I will get a lot of good info out of these forums and hopefully be able to give back as well.

I am trying to help my dad market his product websites to a greater audience. We are going to do some article marketing first. I just need to get a better grasp of how article marketing works.

My first question:

I read somewhere recently that it is best when submitting articles to leave out the affiliate links or adsense until after you get your article submitted and approved by a good amount of directories (they said it should take about 2 months). The reasoning behind this is that the people who are approving the submissions will be more likely to put your article in their directory without the links. Is this a valid point?