Be careful of stock piling
I bought a couple of boxes from B&M (just opened nearby...loving it!!) and the dates run out in June. Now, while I am not generally worried about dates, I tend to use my taste and nose to see if things are OK to eat, I do think that cereal stuff does actually taste stale if its out of date.
I don't eat them that often so I just got 2 boxes...I may see if our local Asda has some with longer dates on.
I have about 35 boxes in the cupboard all dated through till March 2015 lol. I may go and get some more today as I have some money off vouchers or sainsbury