Many years ago it seemed that 15 hands was a HUGE Arabian and there were more that were under that they that size. Very rare 15.1- 15.2 hand Arabian would show up but again, that was very very rare. Now days I am seeing more and more that are in the 15.2- 15.3 range and even a few 16 hand Arabs, not many of those though.
If they had been taller, they would have likely been my number one favorite breed but I ended up with Saddlebreds for their height. Arabs are still on my top 5 favorite breed list.