My kids (16,9 and 6) have been spending far too much time in front of the tv and their game consoles. Last year we decided that camping would be a good idea to break this habit and it would make us spend more time outdoors as a family. We didn't go for long seeing as though it was their first time, and they loved it that much that they didn't want to come home.
I spent the rest of last year buying camping gear from different places and auction sites so when we did it again they would be more comfortable than before. Now we have everything, and I mean everything, including a trailer. The girls were not comfortable trecking to the loos in the middle of the night last time so I bought a portaloo and tent to make it easier for them. The tent we have is massive. Its 7m x 6m and each of the three pods can easily accommodate a queen size air mattress which we have in each. Its not expensive to start camping, and once you have the basics you can go wherever you want.
As a family we have to watch the pennies like most others, and buying cheap camping equipment this way will provide us with many holidays and weekends together for the next few years away from the game consoles and televisions.