Thats true,they dont have a very big selection at least in axes or axe items,and talking about ferreterías,most of the owners of a ferreteria are old people that actually uses or have used the tools they sell so i would put my money on a ferreteria way before than in a big chain storeWith respect, both Leroy Merlin & Bauhaus are in my area (Malaga) & I use them for some items for which they are very good, but for handles I can find a much bigger selection, better quality & cheaper in local Ferreterias, the older the Ferreterias usually the better.
Plus old "Ferreterias" (hardware stores) are usually Spanish owned "Mom & Pop" stores not huge French or German owned chains, if that matters........
Obviously, it might not be the same in every area.
Talking aside of this,Sharp,where are the flea markets you go?i've never in one that had old axe heads
Regards,Termax