They were sometimes convenient, but the last time I bought anything was around three years back. The same stuff as could be obtained from Ebay or Amazon at around half the price.
Also with mail order you don't have to wait in line while the pillock in front of you is having an in depth conversation on the merits of zinc carbon vs alkaline for his penlight.
Whatever the price, most of the stuff was junk and warranty replacements were only after long drawn out arguments.
Good Riddance!!
AB