A Classic could handle 90% of my pocketknife cutting, but only gets used 5% of the time.
As often or more I need other tools that the Classic does not provide or those it has are not up to the job. In use, almost always a larger SAK is more efficient and comfortable. I carry a Classic, mainly as a fob attached to a micro flashlight (or vice versa). It came bundled with something else I was interested in. Sometimes it's handy, but mostly I reach for the full size SAK or multitool. For 13 years I have carried a Swisschamp or Leatherman Super Tool every day, formal or casual, rain or shine, work or leisure. No big deal, totally second nature.