Yeah, camping is reasonably cheap fun. That picture is actually from this July when we went to Cornerstone Festival, in Bushnell, IL. It's a really big music festival thing. Not exactly rustic camping, since there's other tents within feet of yours, and music still blaring from one or two of the many stages until early into the morning. Very fun none the less. B)
More pictures of that:
http://www.thejmfc.com/gallery/cstone2005a.html