Pool: Pros/Cons

[Aki]

Picking up from the topic recently posted on B&Bs: any idea, roughly, of the minimum cost to install an in-ground pool? Ground conditions will impact cost, this is just ballpark. As for costs, is a salt water pool more expensive up front(if so,why?)with lower maintenance over time? Would a 4' maximum depth (sport or lap pool) instead of the traditional very deep pool need to be heated or would the sun warm up the water over time? For safety, what is required for perimeter fencing? We have a lot in HPP and are looking at fencing the lot; however, would that be sufficient for the pool requirements?

Laura