Yeah, the amount of chemicals needed to maintain a chlorine pool are significant, which goes away with a saltwater pool. As a homebrewer, we're often worried about getting chlorine *out* of our water, but for chlorine (not chloramine) just letting water sit out in the open air for 24 hours will largely get rid of it. So with pool chemicals, since you WANT it to stay in there you have to constantly test and maintain the levels.
And I haven't heard that saltwater pools require any compensatory maintenance either by getting rid of chlorine... Because it's salt, it stays in the pool as the water evaporates, so you just have to add water. Maybe every once in a while you need to test salt levels, but it's not the level of maintenance a chlorine pool requires.