demand isnt there because the bow or ring or bag or whatever made by the lucky rolling level 5 crafter is the exact same as the level 15 crafter
the level 5 will sell for what he thinks is fair and not thinking of a standardized list to go by or he may not think there is such
certain things should be certain prices depending on where you buy them
just like the npcs for things you cant craft
for example
soul stones are anywhere from 150 to 250 coins depending on where you buy them
maybe shops or crafting guilds close to a resource would charge less for the item because you dont need a trek around the world to gather supplies
those items with peril involved cost more
and those items that cost more shouldnt be available to lower levels anyway, there are crafted goods that are perfect for lower levels, but should not be the same price as something you have to be say level 10 or higher to use
everyone forgets now before v3 levels 1-7 went faster then you could blink, because everyone was centralized and you always coudl latch onto a group and go exploring
now you may have to spend some time at these lower levels with little coin and help, and without the coin you fall to the stronger dark ages hordes easier then before the war ended