How important in the CN Tower to Canada??

I picked up the Toronto Start at York and read a brief article about the CN Tower. The CN Tower stands at 553 meters tall and was recognized by Guinness World Records as the world's tallest free standing structure. But in January, the CN Tower lost this title to Burj Dubai as it is already at 800 meters and growing. So the thoughtful Guinness World Records gave the CN Tower another title as 'the world's tallest free standing tower' vs. 'structure'. Carey Low a Canadian adjudicator with Guinness said "I understand that some people might think its semantics." But isn't exactly what that is? She further tried to justify this differentiation by describing that Dubai and Toronto's buildings are different as Burj Dubai will have residential space, a hotel and office suites, where the CN Tower has less than 50% of unusable floor space, making it a tower.
The article goes further to explain how the Tokyo Sky Tree in Japan an expected 611 metres and the Guangzhou TV Tower in China an expected 610 meters are in competition for this title in 2011 and 2010. What is the CN Tower's fate? Jack Robinson, the tower's chief operating officer said that since 1975, Guinness has been the source for the CN Tower's hype designation.
The CN Tower may very well have in its future keeping the record for the highest wine cellar at 351 meters. Even in my travels out west, I was confronted with someone who fought to reclaim that the Calgary Tower was in fact taller because of its altitude above water.
It is apparent from this article how important Guinness's stamp of credit is.
What happens to this iconic tower and a piece of Canadian identity when it constantly has to change it's accreditation in order to stay on top? Or is it simply like everything in society that the importance isn't necessarily in the title, but the fact that we fight to keep its relevance.