Transformer Pad vs Nexus 7 (2013)

I've been looking at Android tablets as of late, and I was pretty set on the new 2013 Nexus 7, but I had stopped by my local pawn shop which always has great deals on computers and iPods (bought my sister a 4th gen iPod touch for $80 earlier this year, works great and the condition if fine), they also have things cleaned up to be in near perfect condition. While in there looking for movies, I saw a perfect condition Asus Transformer Pad, keyboard and all. I asked how much it was, but apparently they had just received it recently and had yet to decide on a price. However history dictates that it will most probably be half as cheap as it's original price. So it will probably be within the $200-$300 range. My question here is, is it worth getting over the new Nexus 7? I like the size of the Nexus 7, but the keyboard and battery life of the transformer pad makes it a tempting buy. Any and all help is appreciated.