The amount of useful upgraders is limited, unless one is making all 4 sets of astral gear at the same time. Getting 65 amalgams per week is easy, with some gold it can be brought to 80, which would be 20 enriched amalgams... which I believe are more than the useful upgraders we can get, if we're making only one set of gear. That way, it gives 20% more progress per week by burning 80 amalgams.
My math is based on unlimited MI, though. I have no idea if getting 2000 amalgam enriching solution is possible.
Looks like it is quality over quantity thing.
Let me guess. Your one of the Imps who had near full 56 myth glyphs at the time of the update and only ques for things along with your guild.
For normal players amalgam is rather hard to come from with the odds of getting more than 1 amalgam from JC is rare due to the fact that most of the time others will try to kill your golem since they are in desperate need of amalgam too.
WH and AoD are a crapshoot where some times you get lucky and win and other times you get next to nothing. The only sure way of getting amalgam is to grind alchemy up to level 60 and spend all your time farming that quest.