You still may be able to get a pricematch as their return policy is 90 days. Bring your receipt with you to the store, and they will price match Best Buy and Amazon, you do not have to bring the item with you. I have done this in the past.. hopefully they have not changed the policy.
The race to beat the scalpers has begun. Toys R Us has Soundwave and Acid Storm Masterpieces listed for sale on July 18th. Hopefully this is not another MP10 situation.
Soundwave...
http://www.toysrus.com/product/index.jsp?productId=19038126&prodFindSrc=search
Acid Storm...