As Abacus said, they are in two different price ranges so they can't be compared as similar. The PA should win hands down when comparing the two because you're getting what you pay for. I would definitely get the PA if you can. I do like the s900 with what time I had on it. I think I will get one in the near future, but my funds are always limited so I can only get a new board every couple of years, if that.

Hope this helps,

Jeff