For maxis, there's incentive since El Salvador is one of the only countries to successfully(?) make Bitcoin legal tender.
In spite of that however, adoption is very slow to put it lightly.
Discussion
It’s just so ridiculous, I don’t think bitcoin ppl really know anything about El Salvador, it’s not a nice place.
Might not matter much with how much incentives Bukele is throwing at them, and he's admittedly doing his best to clean up the country.
Once the maxi incentives dry up, however, I see no reason to go there beyond tourism. I'm certain the next planted puppet will just undo all of Nayib's efforts anyway.