MicroCenter absolutely has the latest items, trying to find them on their very poorly organized web site is another matter. Selection isn’t as great either, they focus on certain vendors and only buy select SKU’s, rather than buy all of a vendor’s SKU’s.
They also buy up Intel’s soon to be discontinued CPU’s and sell those at amazing discounts. That 9550 has been selling for $169 for the past 5 months. It is not such a good deal today, but 5 months ago it was unheard of and a steal. Not sure if they do the same thing with AMD’s chips. They tend to do the same thing with cases as well.
If you are lucky enough to live near a retail store, it is a good place to do some shopping.