Old 18-200 vs New 18-250

Has anybody out there had expaerience with both lenses? There seems to be little in the way of reviews of the older lens, but you can find it at a good price these days. I'm going to mount it on the A200, which looks to me like a very competitive body at the price. So the question is: should I spring for the extra ~$120 to go for the new lens?? Thanks!!