They have come on a long way since the dlp machines you mentioned.For a start the speed of the wheel is now 4x/5x even 6x and the amount of segments also makes a difference.
I don't see that many people these days complaining about it in relation to how many are sold.Those that see it often say it gets less obvious as time goes on.
Don't be put off as dlp has may advantages over LCD with only the one drawback of rainbow
IF you can see them.
And one more negative I supose is that most don't have lens shift unlike LCD pj so that means they are a bit more fussy where you can place them in relation to the screen.
I had an LCD before my current PJ and find the dlp pj has a more vibrant filmlike quality and no screen door effect.
