Out of curiosity - when you travel, do you bring any other plug-in appliances that weigh over 5lbs and are larger than a pair of shoes?
I mean, people do sometimes. I've seen people travel with curling irons or hair straighteners. I have a buddy that always has a portable steamer for his clothes. But none of those are over 5lbs (or, 10% of your airline bag check weight limit). I've never seen anyone travel with a clothes iron, for example. I'm sure there are some medical devices some people must travel with that fit this criteria. I've also seen families travel with their kids' game consoles, though I've always thought that defeated the whole point of vacation.
But overall, traveling with a non-portable entertainment appliance is weird. It'd done, but opposite what you said, it's quite abnormal.