Calculating Conversion rates, do I REALLY need that much traffic?

Calculating Conversion rates, do I REALLY need that much traffic?

Ok, so I have a review based blog which leads out to a free trial of a product. Customer enters CC gets free trial etc. My goal was initially to make 3 sales per day from this blog. But when you start breaking down the theoretical math, to make 3 sales a day it seems like i would need RIDICULOUS traffic just to make 3 sales a day. For example:

10% click through review to product website (estimate based on keywords for the product), 10% convert on LP(based on advertisers stats).

So if 10% clicks through, that is 10 out of 100 visitors. Then you have 10% of that which will make a purchase which brings it down to 1 sale per 100 visitors. Now if I want 3 sales per day (hoping no refunds occur), I would need 300 uniques a day, or roughly 9,000 uniques a month. Do these numbers seem right? It seems like grabbing 10k uniques a month for a niche product seems extreme.

Any thoughts on anyone who has done a review blog before?