That is the main point when picking an altcoin. If there is real usage, there will be demand and consequently the price will increase or remain stable at least. However, real usage for me isn't restrict to real world specifically, because there are also many uses for altcoins/NFTs in virtual world, what must also been taken in consideration when investing. If an altcoin is part of a demanded virtual game it can be a good choice, just like AXS of Axie Infinity.

And as we can see, the team behind the project isn't always important, because a brand new team can also surprise the market with their creativity and expertise. Partnerships are also secondary and about period of existence, the sooner you get involved with the altcoin the better, so you can totally enjoy its appreciation.