There are some major hurdles to overcome.

Outside of blockchain games paying hundreds or thousands to advance in a game is pay to win. Inside blockchain gaming that is seen as normal how a blockchain game is.

Quite many are willing to spend 100 hours camping or doing an epic quest chain for a ring and can get a sense of accomplishment from doing so. Once you can buy that ring for $1 as NFT off the marketplace the amount of time spent grinding for it just seems like a waste of time.

Quite a lot of blockchain games release as a bare minimum product. Gamers over the years have gotten tired of that they want full release and deep games now.

Many blockchain games crowd fund via tokens and other offerings where you have to wait years if ever for the game to be fully out. A lot of gamers are tired of the presale, alpha/beta release, and other things. They just want to pay $9.99-59.99 and get a full game today.

There is also the scarcity issue. Gamers are fine knowing that an item might only have a .000001% drop chance. However, if it was known there are only 10 of some crazy items and all 10 were already where found before the game was even fully released. That will not sit right for many knowing they never had a chance and now have to pay insane prices.

Some of these things can be overcome as blockchain gaming matures further. Others are going to have a stigma for quite a few years to come. It’s not helping any when people run around with not so great looking pixie art claiming It has a floor of 50 ETH and they are not selling till it's worth 500 ETH.