Best tennis courts -- private - 2000
Greenwood Athletic Club
This well-appointed club south of Denver has five outdoor courts that are open year-round, but the real draw is the seven scrupulously maintained indoor clay courts. Naturally, such luxury doesn't come cheap; initiation is $300 ($350 for a couple), with additional monthly dues of $107 ($161). That's more than $1,500 per year to swat around a tennis ball, but if you love the high bounces and sliding style of clay, it's well worth the cost.