Great question.
My answer: Why choose? It's best to have options. I, like most of you, suffer from AMS, but there are times when I really need a quick build and still expect to see a well-detailed airplane as a result. Think of it as a way to satisfy the craving and keep the interest alive. High end kits fit this latter need.
Although I will admit that the most satisfaction I've gotten from modeling was when I took a dog kit (like the Monogram P-51D razorback) and brought it up to acceptable standards. Would it look as good as say, a Tamiya kit of the same caliber as their Zero/Spit? Most likely not; it would lack the uniformity of the rivets, panel lines, etc that can only be achieved with years of practice -which I haven't yet!
For the record, I'm in agreement with all of everyone's statements, good to know I'm not a screwball after all