Tankless cost quite a bit more. But if you’re in your house “for good”, then I think it’s worth the investment. BTW, the big tank water heaters typically rust out at end of life… meaning that they leak all their water out the bottom. Usually while you’re on vacation. And they will continue to try to “fill up” with incoming water, meaning the drainage won’t stop until you turn off the water at the source. I’ve seen a lot of new construction recently where they place the big tanks up in the attic. I guess that’s to maximize the possible water damage to the greatest extent possible. Tankless are safe and efficient. I say go for it.