glendalegoon, I really wan't talking about you. Your posts don't make me cringe. I may not agree with some things you say but that's all.
They are cheap to buy because they are dated I assume? I don't think they're cheap in the sense that they are low quality manufacture.
Most aircraft have many disadvantages compared to others....I mean there is no single perfect aircraft right? There's no point in adding complexity to an aircraft that would limit what is actually good at though. Some aircraft are good at being inexpensive to operate and that's a very important feature too although I wouldn't think the Challenger is near the top of this category.