It seems like I would focus on creating items myself and selling them to players, since I can't profit from them otherwise.
Unless there is an after sales market I (and anybody else) am incentiviced to reduce the inflow of external NFTs as much as possible.
If I'm developing a game that has value by itself (aka is fun) it's very unlikely that players would put enough pressure on me to care (they could do that now without crypto but so far it didn't happen. Would be much easier and cheaper to implement).
If players are in it for the financial gain, I'm not really developing a game after all.
I never suggested you had to. Other websites could upstart support handling items from different games so you can focus your development resources on building the game and not on building a trading ecosystem.
>It seems like I would focus on creating items myself and selling them to players
You would be the only one able to mint new items. You can sell new items to players.
>If players are in it for the financial gain, I'm not really developing a game after all.
Wanting to have something that emulates physical ownership closer is not really being in it for financial gain. It's much better for players if they can sell all of their skins to some other player when they are done with the game instead of having a ton of expensive items locked up into their account.
Sure, but web3 gives you access to a giant ecosystem that you can just plug right in to. You can safely create trades including items from multiple games. To say that this ecosystem adds 0 value to me is a stretch.