I fully agree. The trading system in GW2 is great, especially the marketplace/auction house. The only thing you need to consider is if there will be bind of equip, bind of pickup, soulbound items ect. I personally would like to be able to trade everything and I mean absolutely everything.
I fully support the above-mentioned!
In the
marketplace/ trading post we need to be able to make bids and offers (similar
to GW2); you should also be able to mail items and freely trade with players (unlike
in BDO). The stall system would be great (if it could somehow work offline),
like it was in Silkroad back in the day. Deriving from the 2 games I am currently
investing my time into – GW2 and Black Desert online, all I can say is that
Guild wars 2 is doing it better. But again it comes down to whether we can
trade everything (depending on the binding of items), or with some
restrictions, i.e. trade/sell before you bind an item to you character/account,
or will the binded items be account wide or per character. Functionalities such
as instant buy and bidding in my opinion are a must have.