Yes, but does your Comanche sip 7 gph while doing 165 kts?

Yes, but ... there are many other ways to compare. It sips fuel
compared to other twins - but what is the payback period for the
difference in fuel consumption versus the airplane price? OTOH it has
a warranty and parts should be easier to find than an old GA bird.
OTOH ... and so on and so on.

In any case, it's nice to enlarge the fleet.

- FChE