In my opinion everything depends on some areas for example the financial one. If people don't have money, they won't spend it for expensive equipment but they choose something cheaper like watching TV or reading newspapers or books. These group of people who don't need to worry about money can decide to spend their free time on skiing, scuba diving or travelling.
The other areas can be the age. If you are young... you are more crazy so going on the camp with a group of friends and some coins in the packet will be the great relax. People with children will find something what will be safe and intersting not for them but for their children.
The last area about I would like to mention is education.Young and well educated people who generally take part in the rat race, they don't have time for relaxing or it is the relax on the high level.
Of course, it is only my opinion and nobody needs to agree with me or some people can find other areas.
take care,