In essence, it seems to me a bunch of bored academics got together and wasted a bunch of research money setting up a ridiculously complicated experiment to demonstrate that adults like co-operative computer games.
Instead they could've just asked any MMORPG manufacturer about their user demographic and saved a bunch of time and money. Hear that Harkin? Adults like video games too, just like they like flavors.
Otherwise, the result that rewarding activities, such as spending time with loved ones or playing challenging computer games can alleviate nicotine withdrawal symptoms sounds plausible, but it is not a new idea. In fact, the authors themselves do a decent job reviewing similar research in the introduction. I might find use for this publication if I ever need to make a science-based argument to support my need to purchase a new hobby item or video game
In the final analysis, though, to suggest that a video game could be an effective replacement for smoking is nothing more than ivory tower ridiculousness; right up there with the pretense that NRT works or that "a substantial number of [smokers quit] without clinical assistance," as the authors claim. Why would any of us play video games to replace smoking, when we can now vape to replace smoking, while playing video games

?