@Barney:
Yes, every A2000/A2500 I've seen within the past 10 years exhibits that same bowing you are talking about. I do not remember being aware of that attribute when they were first released, but I wouldn't be surprised that it's designed that way. It might make sense that when you place a CRT on her, she might straighten out a bit - I dunno. In any event, it doesn't seem to be hurting anything.