GG Eco.
Throwing out assumptions like that on the day of release isn't smart. Don't do that. Things will always balance themselves out, it's a rule of nature.
https://www.youtube.com/watch?v=N3472Q6kvg0
well here's the thing...
so many people already have several sets of void and are selling them at any price they want, and overseeing the stats, for a pk armour it would make more sense if it was lost and looted upon death as it could be used far more frequently than bandos and cheaper therefore rendering bandos and other god armour solely to be sold for pvm and skyrocket their prices.
yay easiest way to make max 5m per set of void...
Bandos is a better armor set in general. Training slayer in Void or going to Smoke Demon Champion is just stupid wearing void, the latter is pretty much impossible without dying. Solo GWD is also much more efficient with armor set that has defence bonus.
People will get tired of PC soon and things will return to normal.
That's a conversative econ mindset while the keynesian theory states that there will be stagflation once everything "returns to normal" these prices are sticky causing the rachet effect[(output=same) + (price=increased) =stagflation due to low supply]. Thereafter, lets assume that there is people using it solely for pk and not pvm (disregarding raids of multiple low levels to GWD or anything of the like..); the "older" pvp armours/ ancients are going to be rendered useless as there is less risk in getting void + the few people that will have an over abundance of void sets will begin to cause a pull on eco to themselves while demand for regular god armors will continue to rise and to the point were no one will be interested in them. Since there is void, a cheaper and faster source of highly demanded armor.
TL;DR... there will so many strains prior to the release of the G.E. that will then cause the current few hoarding players to manipulate their monopolies even further until there will no sense as to what the real price is for anything, thanks to inexorable inflation.