A large part of Jenga’s success can be attributed to the fact that Jenga is, to borrow a concept from the natural world, a generalist. Being a generalist -as, for example, are the plants that gardeners accuse of being weeds – Jenga has managed to colonize, as weeds do, a wide range of different territories simultaneously . Children like to play it, so it’s available in toy stores. Teachers like to use it as a teaching aid, so it’s available through educational suppliers. It is a popular adult drinking game, so you find it in pubs. Language is no barrier and neither is age, hence it can be perennially popular without acquiring craze status and is thus less likely to drop in and out of fashion as many other toys have done, such as the yo-yo and the hula hoop.
The flip side to such general success is that Jenga spawned a number of copies of knockoffs, some of which, like weeds themselves, rushed in to take advantage of the cleared space and perfect growing conditions Jenga created. Keeping the ground free of these imitations remains a challenge and, at the risk of taking this analogy a step too far, the most effective method of suppressing them has been to treat them like weeds and try to fill any gap in the market with an original Jenga game (or genuine Jenga line extension) as a gardener fills every space in a bed with desirable plants, leaving no room for weeds to take hold.
–A brief excerpt from chapter 12 of ‘About Jenga’