I will say be careful what you might order off season. A few years back I needed a bunch of DT Rats in July. They still had them listed online at the time BUT to get the 2 cases I needed I would have to pay for them to be shipped doubling their cost. This was a few years ago and maybe their policy of things stored in their regional warehouses can only be shipped from there at your cost instead of sent to the store for free pick up has changed.
I will add if you happen to know the store manager of you local store and they HAPPEN to have a box or 5 sitting in the back collecting dust and taking up space you might be able to get them to sell to you out of season. I'm told they aren't suppose to but my local manager at the time needed the space for current stock and was willing to sell me boxes halloween creepy creature in July.