You're changing your argument now, there was nothing about whether it led to a criminal record or not - it was simply that something was illegal and therefore wrong, so don't do it
I'm glad we can agree we all break the law in small ways. I personally don't see why someone should be made to feel particularly more guilty about buying a grey import compared to going over the speed limit. After all going over the speed limit could be the difference between someone dying if you hit them rather than just being injured. Obviously you view it differently, I don't have a problem with that in itself but I just dislike how judgmental people are about this particular issue. I don't go around calling everyone who goes over the speed limit (whether accidental or not) a child killer!
Also the 'criminal offence' argument is exaggerated. I remember a story in the news a year or two back where George Clooney's wife, a top lawyer, 'smuggled' her engagement ring back into the UK and didn't declare it at customs. Pretty sure she quietly paid up and won't have a criminal record...