I guess this would benefit those who spend alot of time on online game. They could be won over if Blockchain-based games are as attractive as normal online games. The incentives should be adequate too
It's definitely profitable if you invest early in a game and it gets profitable in the future.
They can also be profitable if you're lucky with an ultra rare roll, since most of these games have some kind of RNG.
Personally I invested 2 ETH in buying a few lands in Axie Infinity and I hit the less-than-1% chance of rolling a very limited special land called Genesis which is sold between 25-40 ETH!
I'm going to hold it though and benefit from the fees other players will have to pay for passing through my land!