secipolla, maybe I was a bit harsh and too personal in my tastes.
Certainly, lxde is not the worst DE and for new users with old boxes, it is a good start as most of the basic stuff needed is there.
I can only compare lxde/xfce on Debian sid (via antiX) and lxde RAM usage was 62MB compared to xfce 78MB on a box with 3GB available. However, when tested in VirtualBox with RAM set to 256MB, the difference between lxde RAM usage and xfce was not so great, about 5MB difference.
The panel is obviously much better than the one in fluxbox, but icewm's panel can be easily configured to run quick start apps.
The logout stuff in lxde looks just like the one in xfce, it may even be the same, I don't know. But there is no login manager (at least not in Debian) so you have to use slim or gdm. Slim is nice and light, but gdm has more to offer if your RAM is up to it and you have multi-user, multi-language set up.
I don't really like the options lxde chooses for me as well even though they are light, functional and work well enough. I just prefer others. (The same applies to xfce). As you know secipolla, I prefer Rox to pcmanfm, as a filer and for setting the desktop.
I guess what I'm saying is that if I were to choose a desktop environment (I wouldn't as I prefer wm), I would choose xfce-basic install over lxde. You get more with an increased price in RAM use worth it IMO.
For a sort of lxde set up, I prefer a wm plus the added bits that don't exist the secipolla mentions, and the apps of my choice rather than lxde itself.
Anyhow, good luck to the lxde developers. They are certainly helping to make linux more user-friendly without excessive bloat.