If you replace the counter, it has the potential to damage the tile. Not that there is anything particularly wrong with the bath, but many people (particularly young people who watch a lot of HGTV) would just tear it out anyway. Unless your realtor says it is a must, I would not mess with it.

I agree ask your realtor if this would get you 1K more for the house IMO not likely

I'd invest in some luxe white towels and an abstract piece of art to replace the landscape. Buyers like clean and white in a bath,

I would make sure that the paint is nice and bright, get a different piece of art (something simple and clean), white towels, and call it done.

I agree that simply changing the countertops is not worth it.

You won't get your $1000 back.