My Humble Opinion;
It needs more 'hard sell' at this point in its maturation. No need to be shy.
Possible lines (off the top of my head):

You're missing the boat!
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There are so many aspects that could draw in sales.

Also more more current graphic enticement in the ads .. need to catch the eye to begin with. We are all bombarded by ads daily.

Just my thoughts on this tonight..

I do not work here, but the benefits are still awesome
Make your sound your own!