Altered copy of a post I've made elsewhere on the forums before:

I can understand why they don't want every BiS item to be buyable but I really don't see the harm in combinations.

BiS body and head and legs and weapons bought via new tomes, BiS accessories dropped by bosses (Coil, primals, etc), penta melded belt and boots and gloves craftable via super rare mats and master recipes.

That way you ensure that players are really doing all sorts of content and you're including both crafting and raiding at the same time.

I've never really been one for understanding the intricacies of balance, if certain BiS gear would be better obtained using one method over another or how many items should come from one source over another, but I do think some things should definitely come from a variety of sources.

As others in this thread have already suggested, bind the materials and use a request crafting feature to make them for others (and bring back request repairs at the same time).

Regarding the theory that all crafters don't care about anyone or anything other than their own gil purse:
Just to be clear, I'm not rich, nor do I have any interest in being rich. I craft things for people for a single price no matter what the item is: bring your own materials and offer whatever gil you can spare. If people bring their own mats and offer 0 gil because they can't spare any (as has often been the case while people were saving for housing, for instance) then so be it, I'll still do my best to make their item HQ and give it to them. I'm certainly not alone in this practice (it's quite common actually) and it's rather sad if your only experience with crafters has been negative but that does not mean that everyone in the world is malicious and selfish. Try to meet more people, talk to people in your LS and/or FC, talk to people in PF groups or hanging around towns/camps, etc. There are a lot of reasonable crafters out there only too willing to help if you can provide your own mats. Some crafters are even willing to provide mats of their own and give away things for free, at least on legacy servers where more people seem to have a stockpile of cash from what I've seen, though I followed the same practices in 1.xx too so don't have that either XD

Please don't make sweeping statements of the greed (or anything else) of other people. There really is no need for it.