I brought out a vet on my January hunts this year and it was like he was institutionalized into loving them.
He treated them like gold but was so excited to share one with me and tell me all about the surprise factor of not knowing exactly what you're going to get in each package.
There was a lot of "those are great, those terrible, man this package should have had X, that will plug you up for a week!" It was interesting and very humbling.