If your answer is yes, then probably you need to rethink about this in case if you are in Retain domain,
Raspberry Pi goes on sale today, interest causes websites to crash
Performance testing in the Retail domain is full of uncertainty. You never know how many visitor can come visiting your site everyday. In case if you are offering some great deals or selling something which is newly or rarely available, then this further adds to uncertainty. Its hard Job to do Performance testing in Retail domain since ideally their exists almost no real requirements in terms of number of user load or concurrency though there might exist some perception or data about minimum number of users.
