I've long ago given up on google as a major source of traffic for anything that I sell and I think that if that is your main strategy you are stringing yourself up.

Just imagine, a 'regular' store that would depend on all it's business coming from a single source referring customers. It can switch at will to send that traffic to a competitor of yours, and your only guess as to why you are getting this traffic is a bunch of coffee-grind staring individuals that claim to have 'the inside track'.

If you have lots of google traffic because you have a premier listing in their rankings then good for you and now work like the devil to get rid of that dependency so that when - not if - the situation changes you are in control.