After talking with a couple folks about pool liners, I understand I can get the LOOK we want with any of the products we go with....plaster, quartz or pebble. What I would like to know more about is which product is the best. Obviously, plaster is at the bottom of the totem pole. What would be the next step up in quality and why? And the next? and so on... Who are the manufacturers of the products. I know a little bit about the advantages of one to another. But our choice is going to be based on the durability of the product. I don't want to have to worry about it for another...oh say, 20 years (with proper care of course 8) ). I am willing to pay for that, but not break the bank.