I had no intentions of becoming involved in a thread derailment. My point with the original McDonald's post was that just because something is the most popular doesn't necessarily make it superior. Obviously SAKs appeal to a very large number of people, to the point that the OP feels a little left out for not liking them. There are probably 100 reasons that this is the case. I don't think that it's accurate to say that one of those reasons is because they're superior to every other tool or knife. I think that they're fine tools, just not to my taste. I'm not misinformed or ignorant of their greatness, I just choose to travel a different road. If they sold a SAK with a serpentine frame and jigged bone covers I'd probably be on board.
However, I'm happy to see them so successful because I think that as a product they set a good example for other companies to follow. They put out a consistent, high quality product at a reasonable price. I don't see a ton of advertising for them and overall they seem to heavily value function over flashiness. In other words, they produce a quality product and let it speak for itself. That's very admirable in my eyes, and it's nice to see somebody doing that in this day and age where most companies are going the route of copying somebody else's product and spending the majority of their budget on advertising it as "new and improved". The fact that they outsell everybody else with this model is just fantastic. I am truly happy that they're so popular and wouldn't hesitate to recommend one to somebody that was looking for a multi-tool that they can carry on a daily basis.
BTW: I eat at McDonald's now and then myself.