I was all over these forums last year, gathering information, and reading as much as i could on pool builds. The pros and cons of concrete vs vinyl pools. I even talked with a couple PB's and got some quotes last summer. Just could not pull the trigger yet, because the shape and design i want, i can't afford yet in concrete, but i could in vinyl. We have 3 dogs, two cats, and lots of wildlife that come through our backyard since we live out in the country and have several hundred of acres of forestry that backs up to our back yard. With all the wild life, dogs, etc. right there, going with a vinyl pool scares me to death, but the quotes for concrete over vinyl that i got last year were for over 20 thousand dollars more.