As an employee:
If you are in the position to spend money, hire people, buy services, you also meet people you work with and it helps.
If you're junior in general or in some technology, it can be a way to be exposed to it and learn some unknown unknown.
Anything in between, maybe it's just a nice day off, paid by the company.
Every conference this year will probably be touched by talks talking about AI. If there's a year to go, it's probably this one.