Hey,
You mean posting a new article on the same niche blog with a link to your money site on a weekly basis for a long time? I don't think that is a good idea.
When it comes to link bulding my thinking is that it should look as natural as possible. Do you think what you asked happens naturally? I don't think so.
So, if I was in your place I wouldn't send more than 1-2 links (max a couple of) from the same site to my money site. That still looks natural to my mind. Although, I must say, as I have never done it, because I never thought it was a good idea and so I didn't want to risk my money sites, I am not sure if it is actually risky or not (if it increases the chance of a penalty).
Another thing I would think about is that when Google sees that there are many links pointing at a site from another one, it may decrease the power of those links. So, maybe by pointing link to your money site from that blog continuously, you will just decrease the power of those links by time.
Anyway, these are just speculations as I have never tested it. Hopefully there will come someone who has experience with this and has maybe done some testings, too.