You'll notice that at the exact same time the narrator mentions that reindeer are scarce, the camera goes to a frame of a pair of antlers hanging on the Grinch's wall. You can let that sink in for a minute.
He stuffed the entire tree up the chimney in Cindy Lou's house, leaving enough ornaments on that one fell off, but he still wasted a few minutes (at least) removing the ornaments.
If he hated children's toys, and he didn't want to wake the kids in the houses he was robbing, why was he spending all his time playing with the toys?
Fridge Brilliance: When The Grinch is reading off the names from the phone book and saying he hates them, he's going in alphabetical order. However, the Who phone book is in alphabetical order by first name. By the time he gets to "LOATHE ENTIRELY", The Grinch could very well be at the name of his rival, Mayor Augustus May-Who.
Who's to say that Whoville is not the same speck as in Horton Hears a Who!, but stuck on a snowflake? It would explain why Whoville can have both warm and snowy weather.
Jim Carrey's over-the-top performance as The Grinch. Think about it, he's been alone in a cave most of his life. It makes sense he wouldn't be all that right in the head. This is given weight by the fact that, as a kid (before he moved to the cave), he was (relatively) normal.
This troper has never really considered before (probably due to Furry Confusion), but The Grinch appears to be a nudist. As an added bonus, his tendency to eat beer bottles in The Movie is probably a metaphor for alcoholism. Well, I guess being an isolated hermit for more than 50 years does this kind of shit to you.
The film solves a problem I had with the book and animated adaption: why does The Grinch care so much about saving the presents when Christmas "came just the same" without them? (Although it was a nice thing to do.) In the movie, Cindy is on the sled with the presents, giving The Grinch a much better reason to save the sled. Because if the sled went over Cindy Lou would fall over with it.
He tries to save the sled even before he finds out Cindy is on it, but is about to give up until he see's she's on it.
"Oh well, it's just... toys, right?
The movie says "No-one quite knows the reason", despite the Grinch getting a backstory. But when the Narrator is talking, nobody did know the reason. Cindy Lou was the first person to really try and understand him, and she had to patch it together from multiple sources.
The film gives us a more plausible reason why after fifty years of putting up with Christmas, he finally decides to steal it. The Mayor's foolish attempt to mess with him and finding out his crush is marrying another pushes him over the edge.
It also shows that while the Grinch may have changed his mind about Christmas, his dislike of the Mayor was still there when he returned with Cindy and the sleigh.
While the film gets criticized for making the Whos less sympathetic, they still seem thoroughly wholesome beings when directed properly. They quickly forgive the Grinch and welcome him to the festivities twice over, and it all it takes is Cindy Lou and her father's speech about the real meaning of Christmas to destroy their materialistic nature. The only remaining antagonistic figure afterwards is the Mayor, who genuinely is materialistic and cynical, and also holds most of the power in the city (as well as being a tad of a Manipulative Bastard). In retrospect, the Whos are as inherently well meaning as they are in previous interpretations, albeit much more impressionable and easy to corrupt (which given the standard buffoonery in Dr. Seuss works, isn't hard to imagine).
Fridge Horror: Whoville is on a snowflake. People catch snowflakes on their tongues not to mention the other things that happen to snowflakes. Just consider the possibilities how this could end badly for the Whos.
People also walk on snow. In other words, they could be stepped on. And in the event that neither happen, snow does melt...
It's ok, because time compression might apply for Whoville. In the span of the lifetime of a snowflake, (i.e. a few minutes at best) an equivalent of the Earth's lifetime goes past, in a process similar to relativity. Their eventual extinction is as inevitable and no more depressing than that of our own.
Some Fridge Horror for the book, too: For fifty-three years, the Grinch has been holed up in his cave, loathing the joys of Christmas, but most importantly, the noise and the singing. For fifty-three YEARS. That's enough to make a person go insane. And, technically, he is! Or, at least the Whos think so.
Fridge Horror: During a flashback, babies come to Whoville in flying baskets. The Grinch's basket knocks one of the other baskets away and, presumably, takes that baby's place. What happened to the Who baby inside?!