What do you plan to use it for? Aboveground aren't much good for serious swimming or diving. They are good for splashing, cooling off and make great children's pools. Also look at cost. Willing to spend $3000 or $15000? Also remember this about pools, as they age they lose their attraction. The first couple of seasons you can't stay out of them, then you can take them or leave them. After about ten years you wish you'd never seen it.