The economy may be in a downward turn, but the basic desire for fun will never leave the modern civilization. The management of the best online casinos realized this, and are doing what they can to keep their valued guests, and encourage new visitors, by extending incredible comps to the average better.
Almost every online us casino has a players club that allows you to register how much you are betting on each game such as casino table games. There is a point value assigned to each game, and each dollar spent. This is then translated into a spending account for other items within the casino such as drinks, food, hotel stays, and VIP games.
Just as every online casino has a different comp schedule, each players club has different requirements. Some will not allow you to carry over points between visits unless you reach a minimum amount. One example is that in order to retain the points you accumulate in your visit; the card must have at least 300 points. If you have 299, the points will drop off after 24 hours. Be aware that the most common calculation for points is one point per dollar spent.
Other casinos are simply tuning in to their tables and looking for the high rollers. They will offer a free night at their hotel to encourage them to stay later or come back again. This benefits the guest as well as the casino because both have the chance to increase their profits. Look for players clubs at your local establishment.