I got my first sale within two weeks, but then I had to wait for 6 months for the 2nd sale...
I think it's hard to get good amount of views and even harder to get the views from your target people. I haven't sold much, yet... but I have noticed all of my sales were made by people who reached my items by "search". So finding the right keywords may help finding the buyers.
There are a lot of information about those tags/titles, and maybe you can do better for your tags, I think :)
Hope we all get some sales soon :)