In my opinion, axie infinity is a play to earn game which means you must play to get your capital and also get more profit by earning SLP token in this game. Speaking, if you want to invest on this NFT you should manage your time for it so that it would not got to waste.
It's a play to earn game but there's also a way to earn money even if you are not playing, and it's called breeding you'll breed your axies and sell the baby axies to other player or in the market place, it can only cost you small money if you are dealing with the great breed. I personally prefer to play on the game and enjoy every SLP I've got everyday. There's a bright future with Axie and it's not too late yet.