Maybe your industry is different, but having my search standing lowered made a HUGE difference to my sales levels.  
I used to come up first in searches and now I come up 1000th  for about half the items that I sell.  That does tend to take a bite out of sales.
Just a different perspective from someone who saw her sales cut in half by a lowered search ranking.  
I have had to find alternate techniques to increase sales and it has been quite a battle to make enough to live on this month.  
Time to move to the USA?
- Rachelle