How did technological advancement foster increase in recreational activities?

There's probably not enough information here for an answer to this specific question to be given.

Historically however, especially over the last 100 to 200 years, there has actually been less and less leisure time for most modern societies. Despite that work days have gotten shorter and that more holidays are added, the demands of modern careers have had an increasing demand on people's personal lives.

Historically as well, hunter-gatherers and the first agricultural civilizations known to man had a great deal of leisure time, especially when compared to modern standards.

Whether or not interest has increased is something that it may be difficult to substantiate, but the time used to engage in leisure activities has certainly declined throughout human history.

One hypothesis might be that since we as people tend to have less time for leisure, our interest in leisure has grown - much like the interest in many things we cannot actively partake in may be higher than those actions we do partake in.