He's probably had some stolen once.

If you cold, they cold.

High crime area?

And then there's me, who saved time by putting my Christmas lights up in November of last year.

And not taking them down...

I think it says something about society when instead of asking the neighbor why he brings his decorations inside every day, we prefer to ask people online who don't know him.

The question is "Is this a normal thing for others?" and the answer is "No."

Somebody else mentioned having them stolen, but it might be even more traumatic if he'd had decorations vandalized in the past.

I assumed theft prevention, but if he has a nice lawn, he could also be trying to keep it from dying.

Doesn't want them to fade in the sun?

People keep talking about crime, but I tend to hold off on even putting up decorations until a week or less before the holiday because where I live the weather will destroy or launch your decorations, and the storms often come at night with no warning.

So my immediate thought was, he wants to preserve those decorations. It's something I would do if I didn't just accept I'd be replacing a third to a half of my decorations every year because I can't be assed to take them down for storms.