Josh,
Thank you for correcting me that only the higher end aluminum pools are extruded and not one piece as the steel ones are, I did not know that. When I looked at the pool at the pool store I told the salesman more about the extrusion than he could tell me.
When I bought my pool I did not even know they made ones out of aluminum, the store I bought mine from sells only the steel walls with stainless steel service panel which is what I have. I like the way the Johnny W pools look better than the way the steel walls look, but that pool was a couple of thousand dollars more than mine and I just couldn't afford it.