Each time my wife and I go on vacation I try to book around the end of the month and then get United Club or Delta SC passes on eBay. When its the end of the month there are always ones that are expiring that people are trying to get rid of. Usually I pay around $15 per pass but the last time I got 3 United Club passes for a total of $12! That sure made a 3 hour layover at DEN much better! If you use the clubs frequently then a CC is probably better, but if you only take 3-4 leisure trips a year then this might work for you.