Random Rambling: Should there be a more detailed Narnia?

*note: LotR stands for Lord of the Rings; CoN stands for Chronicles of Narnia*

A certain friend and I were talking, (she's a LotR freak and I'm a CoN geek) and certain friend said that she didn't like CoN because there's not enough detail. But she loves LotR because of all the description! (If you have not read LotR, then I shall sum up a bit of J.R.R Tolkien's lovely description: pages. Upon pages.) Certain Friend said that if he (C.S. Lewis) had wanted to target a higher age group, he should have put in more description. Without all the description, he was seeming to target a group of three-year olds, and he's just really not telling us what it's like there.

I, on the contrary, believe that one of the beauties of the Narnia series is that there isn't a ton (i.e, pages upon pages) of description. It's like C.S. Lewis leaves whatever lies beyond the wardrobe door up to us. We get out of it what we put into it. Whereas in LotR, everything is very defined, and it seems that you're just watching what is going on, not being a part of the story. (honestly, in the three times that I've read LotR, I've skipped the parts of description and lineage) Anyway, I suppose I'm just rambling on, so I'll stop now, but please tall me what you think on the issue.