Aganju:
McDonalds is an interesting analagy. In order to maintain its customer base it has changed and altered its product offering.
You can get salads and smoothies and all manner of healthy things that they did not offer in the past. They offer internet and even computers at some stores.They could have stayed with their original offering, pumped up the advertising but i expect they would lose market share to others who adapted to a changing market. Brainking has the same option change or stand still. Standing still will inevitably result in a loss of market share over time but it can live off its name for a number of years and probably be more profiable In the short term.
But i agree with you, whether burgers or boardgames the ultimate measure is can i get more for my bucks elsewhere? Or perhaps even if i like the burger i just get fed up with the same old same old and want something different even if it is no better.