Besides optimization to a platform, why care about exclusivity?

[cloud1161]

its just a loyalty thing i think.  its kinda like if mario lemieux left the pens to go to a different nhl team.  he made the pens unique in the early 90s and everyone was into the pens, but if he went to a different team, many of his fans would feel betrayed but would have to understand he has his own interests as well.