I think the lack of track strip highlight is related to the ability to change track colors, which is likely why the preference Tak mentioned is tied into it. When all tracks are the same color (and usually a darker shade of grey) it's fairly simple to define a lighter variation of that one color. But when every track can be a different color and some of those colors happen to already be light, where do you go from there?
Personally I'd be OK with selecting a single highlight color and going with it. If that highlight color happens to be similar to or the same as an existing track color and therefore that track doesn't really highlight, that'd be my problem.