Aye I think he may have gotten 500k as would anyone else when SA first came out and so few had the 100 imbue skill too, to make the soul forges.
I did get mine for 400k but that was far more recently. There are more of ye to make them now ! GET CRACKIN Sir Morder, lol folks still need them, probably still not enough of them out there on vendors they sell out fast yet, be they 400k or 500k, if folks can afford it they will buy em.
For newer folks though, sadly the prices of soul forges due to the prices of relic frags/plus failures making em...the newer folks may not yet be able to afford soul forges yet. But maybe they can earn a soulforge some other way either harvesting wood or something for yall to maybe get a lower price for newer poorer folks to be able to afford soul forges.