Selling something that is a tad disingenious is hardly new and hardly beyond the realms of a capable PR company and gullible public. There's examples littered in popular culture daily as has been mentioned from, music charts, book lists to TV ratings. The Cheltenham Gold Cup is at the apex of the sport and clashes between two key protagonists who've never met, with a winner takes the spoils is normally capable of stirring up interest in most spheres. This can be rolled out beyond the original shelf life if it develops into a rivalry along the lines of a dynasty.
By mathematical definition all sports in the UK are minority, with the exception of football according to the research results when people are asked to rank their favourite. etc. That's not to say that people don't periodically adopt them when something of significance occurs
In 1972 we were asked to believe Chess was a sport and that held global attention for about 3 months. Clearly there was a unique back drop to this, and an ecentric personality involved which helped no end.
In 1983 sailing held sway for about a month as Australia wrestled the Americas Cup from the yanks, and it seemed the whole country adopted the convicts, with results, progress and development bulletins screened every morning
Since I was living in Nottingham in the early 80's I should say that Torvill and Dean drove me up the wall, but millions were transfixed by this non-sport. At the same time Basketball and the NFL enjoyed a short term trendy status with the advent of Channel 4. Teams like the Solent Stars and Hemel Hempstead suddenly found themselves a new audience!!!
In 2005 we had no shortage of non cricket fans, and even self confessed cricket haters, absorbed by the Ashes
More recently we've seen people watching such minority sports as curling. And the boat race still attracts millions of viewers. I work in Oxford, and well over half the city supports Cambridge!!!
Sport is a part of the entertainment industry and if a specific sport starts to slip off the radar it will inevitably stagnate and lose popularity. Boxing would probably be an example to some extent. With the demise of Sportsnight, (who routinely featured British Championship bouts on Wednesday nights) and more latterly Grandstand it's been struggling. The BBC took a chance and tried to re-introduce it, but to little avail, as in Audley Harrison they picked the wrong standard bearer. The Americans haven't produced a heavyweight of consequence now for a few years and its on the wane there too. Ricky Hatton and Floyd Mayweather have been reduced into undertaking a punishing promotional tour to stir up interest in a fight that would have looked after itself 20 years ago.
I still feel that when there's an X versus Y proposition, and when both X and Y can be presented as the two best evenly matched rivals the sport can offer, then people take an interest. We only need to look at the TV or listen to the radio to witness the growth of opinion led shows (those which are seemingly built around a premium rate phone line). I can only conclude that whe the public are presented with a simple proposition that requires a vote for A, or a vote for B, they can't resist the chance to pass up an opinion, regardless of their knowledge. Radio5's been plugging a 'vote for your favourite Christmas film' this week. And then what? listen to Mark Kermode talk about them. Not that you couldn't listen to him talk about them anyway if you felt the need, as I'm sure that piece has been all but recorded already.
Now without a human angle it becomes a slightly more difficult proposition to sell, but hardly impossible. Try this for an example;
Ask any non racing friends to name 10 racehorses? My best guess is that 9 will be jumps horses. Then ask them to name 10 jockeys? and a bet about 8 will be from the flat. Its evidence of sorts (provided my supposition is correct of course) that where jump racings concerned the GP associate with the equine, rather than the human.
If nothing else, this thread as finally found me in the same on an issue as Clive