Off-topic, but I'm a lifelong collector of knives, and I use my $13 Spartan about 100x more than any of the others. Honestly, probably not an exaggeration. Its utility divided by its cost is extremely happy-making.
I think that was the parent's point.
Not to mention, the knife in a Swiss Army knife is going to be way worse than a similarly priced knife. There's a number of things you can do with a $60 knife you can't with a Swiss Army knife.