ThinkPads are great stuff. This I give it to you right now. Too bad, cannot afford.
Right now I'm on an HP Pavilion portable computer. Not expensive, 17.3" screen (yes, glossy 16:9) and speakers sound like crud even if they say "Altec Lansing - Dolby Advanced Audio" on them. Maybe it's because I'm running Linux.
I believe there are a couple of reasons for some of the things you listed. For one, a glossy (I call it glazed) screen offers more vivid colors. However I've only heard of this: I used to own an Archos device, and on Archos forums, when a guy asked to choose between a glossy and a matte screen, it's almost always glossy for colors. Read here. I use this computer indoors, because admit it, 17.3" is a hulking monster. Although I just saw 18.1".
I'm not really used to the trackpoint (little red dot, right?), I find it hard to control although, granted, that's for a minute of use.
I don't really know much about the resolution issue (I have 1600x900, 106dpi, decent enough), but I can say something about the aspect issue. These days it's HD and Blu-Ray and those things are 16:9. I myself prefer anamorphic (2.35:1) but I have a 4:3 CRT TV. So that. But my 2003 computer has (I believe) 5:4 and has much more vertical estate than the Gateway, even though they are both 15.6", the Gateway is 16:9 and that's why I wanted a bigger screen in the first place! 768 pixels vertical is too little. I had to hide Gnome panels (Linux talk) and use F11 all the time to read full-page articles and PDFs.
Some 17.1" portables have 1920x1080 (HP Envy excluding some potential Macs which I don't know about).
Keyboard issue. Maybe it's my typing but on the 2003 computer, I never mis-type. Now on today's keyboard, if often happens: I don't put enough pressure on some keys, so "because" can become "becase" and such.
Questionable construction indeed. Again, ThinkPads are great. My lab has a couple of ThinkPad stations (for logging masses and such) and I'm not the first guy to have spilled (powdered, hydrate) CuSO4 onto the keyboard. Keeps working although you just see the key gaps full of blue powder.
But I believe construction quality is just going down as the goal is to lower costs (read: larger profit margin). Compare a 1992 D-32 to todays D-EJ###. Next time we'll just label Fisher Price everywhere.
Never experienced text-in-a-white-box issue. Probably because I never use bullets.
Cheers.